Biomedical Sciences Final Test Solutions - 152 Verified Questions

Page 1


Biomedical Sciences

Final Test Solutions

Course Introduction

Biomedical Sciences is an interdisciplinary field that explores the biological and physiological principles underpinning human health and disease. This course integrates foundational knowledge from subjects such as biology, chemistry, physiology, and molecular genetics to unravel the mechanisms of the human body at the cellular and systemic levels. Students will engage with key topics including human anatomy, biochemistry, microbiology, immunology, and pathology, gaining insights into diagnostic techniques, therapeutic strategies, and cutting-edge biomedical research. The curriculum is designed to foster analytical and laboratory skills, preparing students for diverse careers in healthcare, research, pharmaceuticals, and biotechnology.

Recommended Textbook

Brodys Human Pharmacology 5th Edition by Lynn Crespo

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55 Chapters

152 Verified Questions

152 Flashcards

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Chapter 1: Pharmacodynamics: Receptors and

Concentration-Response Relationships

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2 Verified Questions

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Sample Questions

Q1) The majority of medications available today act on which superfamily of cellular membrane receptor?

A) Ligand-gated ion channel

B) G-protein-coupled receptor

C) Receptor tyrosine kinase

D) Nuclear hormone receptor

E) Cytokine receptor

Answer: B

Q2) Nalbuphine is an effective pain reliever because of its activity at mu-opioid receptors. However, if given to a patient who has recently received morphine (which also affects mu-opioid receptors) for postoperative pain, nalbuphine can worsen his or her pain. Thus nalbuphine is said to have what kind of activity at mu-opioid receptors?

A) Full agonist

B) Partial agonist

C) Competitive antagonist

D) Non-competitive antagonist

E) Allosteric modifier

Answer: B

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Chapter 2: Pharmacokinetics: Absorption, Distribution,

and Elimination

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5 Verified Questions

5 Flashcards

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Sample Questions

Q1) Which organ contains predominantly tight intercellular junctions, thereby restricting its uptake of drugs?

A) Kidney

B) Liver

C) Brain

D) Heart

E) Lungs

Answer: C

Q2) Drugs commonly undergo all of the following types of metabolism in the liver EXCEPT FOR:

A) Polymerization

B) Conjugation

C) Oxidation

D) Reduction

E) Hydrolysis

Answer: A

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Page 4

Chapter 3: Clinical Pharmacokinetics and Issues in Therapeutics

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3 Verified Questions

3 Flashcards

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Sample Questions

Q1) For a 40-year-old, 75-kg man, drug X has a volume of distribution of 40 L and a clearance of 25 ml/min. Calculate the predicted loading dose of drug X to achieve a plasma concentration of 2 g/ml.

A) 20 g

B) 80 g

C) 20 mg

D) 50 mg

E) 80 mg

Answer: E

Q2) Which of the following is most likely increased in the average 70-year-old man compared with the average 30-year-old man?

A) Body water percentage

B) Total lean body mass

C) Glomerular filtration rate

D) Carotid body baroceptor reflex

E) Plasma -1 acid glycoprotein

Answer: E

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Chapter 4: Drug Development, Regulation, and Prescription Writing

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3 Verified Questions

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Sample Questions

Q1) Which of the following pairs of Latin abbreviations and English meanings is correct?

A) QID = daily

B) AC = after meals

C) PO = by mouth

D) BID = every 2 days

E) \( \overline{{S}} \) = with

Q2) In the United States, a "rare disease" is defined as one affecting fewer than what number of people?

A) 25,000

B) 50,000

C) 100,000

D) 200,000

E) 400,000

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6

Chapter 5: Gene Therapy and Emerging Molecular Therapies

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2 Verified Questions

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Sample Questions

Q1) Choose the true statement regarding gene transfer mechanisms.

A) Plasmid DNA transfer has the advantage of being highly efficient.

B) Retrovirus transfer is optimal when the target cell is undergoing division.

C) The high rate of protein uptake makes liposomal transfer mechanisms less desirable.

D) Adenovirus transfer typically has effects lasting 3 years or longer.

E) Herpes simplex viruses are clinically used to transfer DNA to reproductive organs.

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Chapter 6: Antibodies and Biological Products

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Sample Questions

Q1) This compound acts as an immunosuppressive drug via a DNA alkylating mechanism:

A) Mycophenolate mofetil

B) Tacrolimus

C) Dexamethasone

D) Infliximab

E) Cyclophosphamide

Q2) Over the first 24 hours of glucocorticoid therapy, which group of leukocytes increases in number?

A) Neutrophils

B) Eosinophils

C) Macrophages

D) Basophils

E) Lymphocytes

Q3) Which of the following medications typically enhances immunologic activity?

A) Glatiramer

B) Methotrexate

C) Cyclosporine

D) Tacrolimus

E) Sargramostim

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Chapter 7: Herbals and Natural Products

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Sample Questions

Q1) Which of the following agents is marketed to decrease nausea and vomiting?

A) Ginger

B) Saw palmetto

C) St. John's wort

D) Ginkgo biloba

E) Kava

Q2) The following health claim has been approved by the Food and Drug Administration (FDA):

A) Glucosamine may promote cartilage regeneration and slow the progression of arthritis.

B) Garlic supplementation may reduce average blood pressure and LDL cholesterol.

C) Echinacea may reduce the duration of cold and flu symptoms.

D) Calcium supplementation may reduce the risk of osteoporosis.

E) Antioxidant supplementation may slow neoplastic transformation in cancer patients.

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Chapter 8: Principles of Toxicology

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Sample Questions

Q1) Choose the correct statement of the following:

A) The deleterious effects of most toxic substances are confined to a single organ system.

B) The lungs do not have a significant role in the biotransformation of toxic chemicals.

C) By helping to clear the foreign substance, the immunologic system has a primarily beneficial role in response to nickel exposure.

D) Common targets of neurotoxins include axonal transport and neurotransmitter release.

E) Benzene toxicity is primarily autoimmune-mediated by immunologic overstimulation.

Q2) Select the correct pairing of toxin - antidote:

A) Penicillamine - iron

B) EDTA - copper

C) Deferoxamine - lead

D) Methanol - ethanol

E) Carbon monoxide - nitrous oxide

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Chapter 9: Introduction to the Autonomic Nervous System

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Sample Questions

Q1) Influx of this ion into the terminal of the presynaptic nerve mediates neurotransmitter release:

A) Sodium

B) Potassium

C) Calcium

D) Magnesium

E) Chloride

Q2) Which of the following tissues is NOT directly innervated by the autonomic nervous system?

A) Skeletal muscle

B) Kidney

C) Liver

D) Blood vessels

E) Heart

Q3) Bronchodilation occurs in response to stimulation of this autonomic receptor:

A) -1

B) -2

C) -1

D) -2

E) M-1

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Chapter 10: Drugs Affecting the Parasympathetic Nervous

System and Autonomic Ganglia

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Sample Questions

Q1) ?Which of the following is a muscarinic antagonist selective for the urinary tract and therefore is used to treat urge incontinence?

A) Atropine

B) Bethanechol

C) Tolterodine

D) Ipratropium

E) Glycopyrrolate

Q2) Which of the following is a NOT a probable effect produced by muscarinic stimulation?

A) Decreased heart rate

B) Pupillary dilatation

C) Increased salivation

D) Urinary sphincter relaxation

E) Increased gut motility

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12

Chapter 11: Drugs Affecting the Sympathetic Nervous System

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Sample Questions

Q1) Norepinephrine is the neurotransmitter secreted by postganglionic sympathetic neurons EXCEPT FOR those that innervate:

A) Sweat glands

B) Heart

C) Blood vessels

D) Pupils

E) Pancreas

Q2) A 63-year-old man is experiencing an acute exacerbation of his congestive heart failure in the intensive care unit. Among other treatments, the physicians have decided to start a drug infusion that will increase the contractility of his heart while having a minimal effect on his systemic vascular resistance. Which of the following would be the best option?

A) Epinephrine

B) Dobutamine

C) Isoproteronol

D) Norepinephrine

E) Phenylephrine

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Page 13

Chapter 12: Skeletal Muscle Relaxants

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Sample Questions

Q1) A 21-year-old man undergoing hernia repair receives succinylcholine before undergoing intubation and being anesthetized with sevoflurane, a halogenated volatile anesthetic agent. He suddenly becomes tachycardic, has an elevated temperature, develops muscle rigidity, his fraction of exhaled oxygen decreases, and his fraction of exhaled carbon dioxide increases. Which of the following skeletal muscle relaxants is most likely to reverse the symptoms he is experiencing?

A) Vecuronium

B) Baclofen

C) Cyclobenzaprine

D) Diazepam

E) Dantrolene

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Chapter 13: Local Anesthetics

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Sample Questions

Q1) The following drug should NOT be administered to a patient with a plasma cholinesterase deficiency:

A) Lidocaine

B) Mepivacaine

C) Etidocaine

D) Bupivacaine

E) Procaine

Q2) A 34-year-old woman received a brachial plexus nerve block before undergoing surgical repair of carpal tunnel syndrome affecting her left wrist. A total of 40 ml of local anesthetic solution was used. Forty-five minutes after the nerve block was placed, the patient suffered a cardiac arrest. This is the local anesthetic most likely used:

A) Lidocaine

B) Mepivacaine

C) Etidocaine

D) Bupivacaine

E) Procaine

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Chapter 14: Histamine and Antihistamines

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Sample Questions

Q1) A 13-year-old girl develops persistent sneezing and complains of a scratchy throat. Her grandmother gives the girl a medication from her medicine cabinet. The girl suddenly becomes fatigued and complains of blurry vision and dry mouth. Which of the following is most likely responsible for these symptoms?

A) Loratadine

B) Cetirizine

C) Chlorpheniramine

D) Fexofenadine

E) Azelastine

Q2) A 10-year-old boy presents to the emergency department in severe shock. His mother states that he was bitten by a wasp before becoming progressively more unresponsive. What is the first medication that should be given to treat the boy's histamine-mediated anaphylaxis?

A) Diphenhydramine

B) Cromolyn sodium

C) Fexofenadine

D) Epinephrine

E) Ranitidine

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Chapter 15: Prostaglandins and Other Eicosanoids

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Sample Questions

Q1) Which of the following enzymes is NOT directly involved in the production of eicosanoids (prostaglandins, leukotrienes, and thromboxane) from the cell membrane lipid bilayer?

A) Lipoxygenase

B) Monoamine oxidase

C) Cyclooxygenase

D) Phospholipase A2

E) Cytochrome P450

Q2) Prostaglandins act via which type of receptor?

A) Ligand-gated ion channel

B) G-protein-coupled receptor

C) Receptor tyrosine kinase

D) Nuclear hormone receptor

E) Cytokine receptor

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17

Chapter 16: Drugs to Treat Asthma and Chronic Obstructive Pulmonary Disease

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3 Verified Questions

3 Flashcards

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Sample Questions

Q1) Chronic obstructive pulmonary disease (COPD) is characterized by an increase in which of the following types of leukocytes?

A) Neutrophil

B) Basophil

C) Eosinophil

D) Lymphocyte

E) Monocyte

Q2) Long-term use of the following medication class is indicated for mild persistent asthma but in COPD is reserved for cases refractory to other chronic treatments:

A) Leukotriene modulator

B) Muscarinic antagonists

C) Beta-2 agonists

D) Glucocorticoids

E) Chromones

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Chapter 17: Drugs Affecting Uterine Motility

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2 Verified Questions

2 Flashcards

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Sample Questions

Q1) A 26-year-old woman undergoes a caesarean section. Following delivery of the baby, her uterus does not contract adequately and begins to bleed excessively. Which of the following would be an acceptable agent for the anesthesiologist to administer to improve uterine tone?

A) Methylergonovine

B) Magnesium sulfate

C) Nifedipine

D) Indomethacin

E) Terbutaline

Q2) The following is a common side effect of magnesium sulfate when used for tocolysis:

A) Hyperreflexia

B) Hypercalcemia

C) Drowsiness

D) Hypertension

E) Hypokalemia

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Chapter 18: Drugs Affecting the Gastrointestinal System

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Sample Questions

Q1) The following medication is NOT commonly used to treat gastric Helicobacter pylori infection:

A) Amoxicillin

B) Linezolid

C) Tetracycline

D) Metronidazole

E) Clarithromycin

Q2) A 59-year-old schizophrenic man has a history of dystonic reactions to typical antipsychotic medications. He now takes olanzapine as treatment of his schizophrenia. He is scheduled to undergo an inguinal hernia repair under general anesthesia. He has a history of postoperative nausea. Which of the following would be the most suitable anti-emetic medication for this man?

A) Droperidol

B) Aprepitant

C) Metoclopramide

D) Promethazine

E) Dronabinol

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Page 20

Chapter 19: Introduction to the Regulation of Cardiovascular Function

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Sample Questions

Q1) Peripheral input for the autonomic nervous system control of the cardiovascular system includes all of the following except:

A) Vagus nerve carrying neural signals from arterial stretch receptors

B) Parasympathetic chemosensory neural signals from the lungs

C) Sympathetic neural signals from the rostral ventrolateral medulla

D) Carotid sinus blood gas O

E) Sympathoexcitation stemming from visceral ischemia

Q2) The baroreceptor reflex rapidly changes to ensure adequate blood flow to the tissues. Among the following tissues, which is least affected by this reflex?

A) Skin

B) Kidneys

C) Heart

D) Abdominal viscera

E) Brain

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21

Chapter 20: Antihypertensive Drugs

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Sample Questions

Q1) The class of antihypertensive that decreases total peripheral resistance, dilates coronary arteries, and slows cardiac conduction velocity is:

A) ACE inhibitors

B) Direct vasodilators

C) Calcium channel blockers

D) Beta adrenergic blockers

E) Loop diuretics

Q2) Alpha-1 receptor antagonist therapy can result in an increase in cardiac oxygen consumption due to increased sympathetic discharge from baroreceptors. This can be alleviated by the use of which class of drug?

A) Thiazide diuretic

B) ACE inhibitor

C) Beta-1 receptor blocker

D) Centrally acting sympatholytic

E) Calcium channel blocker

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22

Chapter 21: Diuretic Drugs

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Sample Questions

Q1) The location of the mechanism that leads to hypokalemia with many diuretics is located in the:

A) Glomerulus

B) Proximal convoluted tubule

C) Descending loop

D) Ascending loop

E) Collecting tubule

Q2) Diuretic resistance after chronic loop diuretic administration is due to:

A) Increase in the transport of organic cations from the blood to the urine

B) Increased Na /K -ATPase activity

C) A decrease in Na reabsorption by distal tubule cells

D) Decreased osmotic load at the distal tubule

E) Decreased Na /K -ATPase activity

Q3) Carbonic anhydrase inhibitors promote the excretion of Na and HCO , whereas thiazide diuretics promote:

A) Excretion of Na , Cl , and Ca

B) Excretion of Na and Cl while diminishing Ca excretion

C) Excretion of Na , Cl , Ca , and Mg

D) Excretion of Na and Cl while reabsorbing Mg

E) Excretion of Na while diminishing Cl excretion

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Chapter 22: Antiarrhythmic Drugs

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Sample Questions

Q1) The mechanism of action of class III antiarrhythmic drugs is:

A) Sodium channel blocker

B) Potassium channel blocker

C) Beta adrenergic blocker

D) Calcium channel blocker

E) Local anesthetic action

Q2) The class III drug amiodarone:

A) Delays influx of sodium into the myocyte

B) Blocks several potassium channels, prolonging the action potential

C) Delays influx of calcium into the myocyte

D) Has beta adrenergic receptor blockade properties

E) All of the above are correct

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24

Chapter 23: Drugs to Treat Heart Failure

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Sample Questions

Q1) Systolic failure secondary to ischemic cardiomyopathy leads to all of the following except:

A) Down regulation of the sympathetic nervous system

B) Peripheral vasoconstriction leading to an increased afterload

C) Activation of the renin-angiotensin system

D) Fluid retention

E) Remodeling of the functional proteins within the myocardium

Q2) Which of the following drugs significantly increases the levels of cyclic guanosine monophosphate?

A) Milrinone

B) Nesiritide

C) Dobutamine

D) Inamrinone

E) Digoxin

Q3) ACE inhibitors are a common treatment for heart failure; this is because:

A) Afterload is reduced

B) Peripheral resistance is increased

C) Long-term mortality is reduced

D) Preload is reduced

E) A, C, and D

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Chapter 24: Vasodilators and Nitric Oxide Synthase

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Sample Questions

Q1) Phosphodiesterase type 5 inhibitors

A) Are primarily used in congestive heart failure

B) Cause increased levels of cGMP in certain tissues, which leads to increased NO concentrations and vasodilation

C) A and B

D) Are vasodilators used in the treatment of hypertension

E) A, B, and D

Q2) Clinical problems with vasodilators include

A) Renin release

B) A phenomenon where blood flow is shunted from ischemic tissues to healthier tissues

C) Activation of the sympathetic nervous system

D) B and C

E) All of the above

Q3) Nitroglycerin is a mainstay for treatment of angina pectoris because:

A) Redistributes intracardiac blood flow to the subendocardium

B) It causes venodilation, reducing venous return to the heart

C) Causes an increase in LV end-diastolic pressure

D) Decreases afterload through precapillary vasodilation

E) A, B, and D

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Page 26

Chapter 25: Lipid-Lowering Drugs and Atherosclerosis

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Sample Questions

Q1) Vytorin is a combination of ezetimibe and simvastatin. The pharmacologic effects include:

A) Platelet inhibition

B) Reduction in intestinal absorption of cholesterol

C) Cholesterol-lowering ability independent of plasma lipoprotein levels

D) Inhibition in cholesterol synthesis within hepatocytes

E) A, B, and D

Q2) Isolated hypertriglyceridemia is best treated with:

A) Statins

B) Fibric acid derivatives

C) Cholesterol absorption inhibitors

D) Niacin

E) Bile acid sequestrants

Q3) When a patient is intolerant to statin class drugs, the most common second choice for treating LDL cholesterol levels greater than 135 mg/dl is:

A) Bile acid sequestrants

B) Fibric acid derivatives

C) Cholesterol absorption inhibitors

D) Niacin

E) Statins

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Chapter 26: Antithrombotic Drugs

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Sample Questions

Q1) Two vitamin K-dependent factors made in the liver are proteins C and S.

A) These are part of the thrombus-forming cascade.

B) These act primarily to regulate sodium excretion.

C) These proteins function to inactivate clotting factors V and VIII.

D) These proteins are clinically used to treat myocardial infarction and stroke.

E) These proteins are not affected by warfarin.

Q2) Warfarin administration:

A) Is used to lyse deep vein thromboses

B) Interferes with the production of clotting factor VII

C) Can be reversed with the use of vitamin K

D) Is monitored with PTT levels

E) Is ideal when rapid-acting, short-duration treatment is indicated

Q3) Heparin differs from low molecular weight heparins (LMWH) in that:

A) LMWHs can be given PO

B) LMWHs' effectiveness is measured by PT and INR

C) LMWHs have a greater capacity to directly inhibit factor Xa

D) LMWHs cannot be reversed by protamine sulfate

E) B and C

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Chapter 27: Introduction to the Central Nervous System

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Q1) Long-term use of a receptor agonist can lead to:

A) Adaptation of the post-synaptic neuron yielding creation of less receptor density (desensitization)

B) Adaptation of the post-synaptic neuron yielding increased cell messenger production

C) Down regulation yielding less synaptic neurotransmitter.

D) A, B, and C

E) A and B

Q2) After the neurotransmitter serotonin attaches to a post-synaptic receptor, it:

A) Releases and is then destroyed by proteases

B) Spontaneously degrades

C) It is taken back up into the pre-synaptic neuron

D) It is taken up by the post-synaptic neuron

E) Is metabolized by acetylcholinesterase

Q3) A GABA agonist will result in:

A) Hyperpolarization of post-synaptic neurons

B) The same effect as that of glutamine

C) Decreased seizure threshold

D) Decreased neurotransmitter destruction

E) Decreased chloride ion influx

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Page 29

Chapter 28: Treatment of Parkinsons and Alzheimers Diseases

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Q1) L-DOPA is combined with carbidopa because:??

A) Carbidopa potentiates the action of L-DOPA

B) L-DOPA cannot cross the blood-brain barrier

C) Carbidopa prevents peripheral conversion of L-DOPA to dopamine

D) Carbidopa has additional anti-Parkinson effects

E) Carbidopa prolongs the half-life of L-DOPA

Q2) The pharmacologic treatment goals for Parkinson's disease include:

A) Increase the production of dopamine in the brain

B) Decrease the breakdown of dopamine in the brain

C) Increase the receptor density for dopamine in the brain

D) Provide additional agonist activity for existing dopamine receptors

E) All of the above

Q3) Primary treatment goals of Alzheimer's disease include:

A) Increasing cholinergic activity

B) Increasing central dopaminergic activity

C) Increasing sympathetic activity

D) Increasing GABA-ergic activity

E) Increasing NMDA-receptor activity

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Chapter 29: Treatment of Psychotic Disorders

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Sample Questions

Q1) Atypical antipsychotics differ from typical antipsychotics in that:

A) Atypical antipsychotics have a smaller therapeutic window

B) Atypical antipsychotics block more D receptors than typical antipsychotics

C) Atypical antipsychotics block 5-HT A as well as D receptors

D) Atypical antipsychotics have a higher incidence of adverse effects

E) Atypical antipsychotics have no known side effects

Q2) Extrapyramidal symptoms occur with antipsychotics due to:

A) Inhibition of receptors in the mesolimbic region of the brain

B) A compensatory response in the mesolimbic region due to receptor blockade

C) Blockade of muscarinic cholinergic receptors

D) Blocking of dopamine receptors in the basal ganglia

E) Up regulation of dopamine receptors

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Chapter 30: Treatment of Affective Disorders

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Sample Questions

Q1) The serotonin syndrome:

A) Symptoms can be lessened by administration of methysergide

B) Is caused by an increase in 5-HT synthesis as well as decreased breakdown

C) Is characterized by blanching of the skin

D) Is an unpleasant but clinically benign side effect

E) Is less commonly associated with sertraline than with bupropion

Q2) Tricyclic antidepressants can produce delirium. Which of the following is true about this effect?

A) The delirium is considered beneficial in treating depression

B) Increasing the TCA dosage usually alleviates the problem

C) The delirium is due to increased 5-HT receptor stimulation

D) The antimuscarinic activity of this class is thought to be at the cause

E) Is usually a prelude to the onset of seizures

Q3) The difference between SSRIs and SNRIs is:

A) SSRIs do not impede the reuptake of 5-HT

B) SSRIs are not effective for anxiety disorders

C) SNRIs have more impact on norepinephrine reuptake than do SSRIs

D) SNRIs are more like TCAs than SSRIs

E) SNRIs have no association with serotonin syndrome

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Page 32

Chapter 31: Treatment of Anxiety and Insomnia

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Sample Questions

Q1) The benzodiazepine class of medications:

A) Can be used to effectively control muscle spasms

B) Is not habit forming

C) Has no risk of respiratory depression

D) Acts primarily on the NMDA receptor

E) Does not undergo extensive hepatic metabolism

Q2) The receptors of the GABA complex are variously stimulated by multiple classes of medications including benzodiazapines. The result of such stimulation is:

A) A down regulation of the GABA receptor complex

B) Hyperpolarization of the postsynaptic cell

C) Decreased chloride influx

D) Increased activity of the postsynaptic neuron

E) Decreased seizure threshold

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33

Chapter 32: Ethanol, Other Alcohols, and Drugs for Alcohol Dependence

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Sample Questions

Q1) The pharmacologic basis for using acamprosate in an alcoholic is:

A) It blocks the disinhibition of alcohol

B) It has GABA agonist activity

C) It is a glutamate NMDA receptor antagonist

D) It enhances the rapid breakdown of ethanol.

E) It blocks opiate receptors

Q2) The blood alcohol concentration (BAC) for a given intake of alcohol (assuming a starting level of zero):

A) Tends to be higher in chronic alcoholics

B) Can be initially higher in women due to a lower first pass clearance

C) Is relatively consistent whether it was determined on whole blood, plasma, or serum.

D) Is not affected by end-stage renal disease

E) Is not clinically significant at 0.15%

Q3) The pharmacologic action(s) of disulfiram is/are:

A) Increased acetate concentration

B) Catabolism of acetaldehyde is increased

C) Acetaldehyde dehydrogenase is inhibited

D) Decreases central nervous system effects of alcohol

E) Alcohol is rapidly converted to glucose

Page 34

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Chapter 33: Treatment of Obesity and Eating Disorders

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Sample Questions

Q1) Which of the following can be used to stimulate appetite in patients with cachexia?

A) Dronabinol

B) Corticosteroids

C) Progestational agents

D) A and B

E) A, B, and C

Q2) Sibutramine has which of the following actions?

A) Decreases appetite

B) Decreases thermogenic physiologic pathways

C) Decreases high-density lipoprotein levels

D) Decreases heart rate

E) Decreases blood pressure

Q3) The sympathomimetic anti-obesity agents:

A) Are chemically related to norepinephrine and dopamine

B) Include phentermine and orlistat

C) Inhibit GI lipase

D) Have their effect primarily through speeding up metabolism

E) Are Schedule II medications

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Chapter 34: Treatment of Seizure Disorders

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Sample Questions

Q1) The pharmacologic agent of choice for absence seizures is:

A) Diazepam

B) Phenytoin

C) Gabapentin

D) Ethosuximide

E) Phenobarbitol

Q2) A patient with partial seizures was on phenytoin and having frequent breakthrough seizures. You switch her to valproic acid and she becomes lethargic with ataxia. The most likely cause:

A) The phenytoin and valproic acid had a synergistic effect

B) Valproic acid adverse effects were taking effect

C) The phenytoin was displaced from plasma proteins and reached toxic levels

D) Valproic acid catalyzed conversion of phenytoin to fosphenytoin

E) None of the above

Q3) The pharmacologic action of phenytoin is:

A) Activation of GABA receptors

B) Blockade of calcium channels

C) Activation of ligand-gated Cl-channels

D) Inhibition of glutamate receptors

E) Blockade of sodium channels

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Chapter 35: General Anesthetics

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Sample Questions

Q1) A benzodiazepine is often administered along with the use of ketamine because:

A) Of the short duration of ketamine

B) Of the high incidence of dysphoric episodes and disturbing dreams with ketamine

C) Benzodiazepines increase the effectiveness of NMDA antagonism

D) Benzodiazepines have analgesic properties

Q2) The administration of halothane and morphine can lead to:

A) An increase in hepatic toxicity over that of halothane alone.

B) Increased amnestic response.

C) Cerebral vasodilation leading to increased ICP

D) Malignant hypertension

E) Improved organ perfusion over that of halothane alone.

Q3) The use of N O with halogenated anesthetics is common. The addition of N O can:

A) Trigger megaloblastic anemia

B) Reduce the amount of halogenated anesthetic used

C) Lead to air emboli in the bloodstream

D) A and C

E) All of the above

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Chapter 36: Drugs to Control Pain

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Sample Questions

Q1) The use of naloxone in a somnolent, unresponsive ER patient with barbiturate overdose will lead to:

A) In improvement in neurologic status

B) An increase in respiratory rate

C) No response

D) Cardiovascular status improvement

E) Immediate withdrawal

Q2) Opioid class medications effects do NOT include:

A) Antidiarrheal

B) Antitussive

C) Analgesic

D) Antiemetic

Q3) A large IV push of naloxone to an unresponsive heroin addict can most commonly lead to:

A) Respiratory depression

B) Triggering of immediate withdrawal symptoms

C) Decreased level of consciousness

D) Pupillary constriction

E) Hypotension and bradycardia

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Page 38

Chapter 37: Drugs and Substance Abuse, Addiction, and Treatment

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Sample Questions

Q1) Methadone maintenance therapy:

A) Also assists with benzodiazapine addictions

B) Blocks the ability to screen for other opiates

C) Does not directly stimulate mu-opioid receptors

D) Does not have any analgesic effect

E) Is a therapeutic regimen that cannot be abused

Q2) Of the following drugs, the most severe and life-threatening withdrawal is from:

A) Benzodiazapines

B) Opiates

C) Barbiturates

D) Ethanol

E) Hallucinogens

Q3) The pharmacologic basis for varenicline is:

A) Decreased activity in the mesolimbic dopamine pathways

B) Increased norepinephrine synaptic density

C) Partial agonist of nicotinic receptors

D) Reverses carcinogenic effects of smoking history

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Page 39

Chapter 38: Introduction to Endocrine Pharmacology and Hormones

of the Hypothalamus and Pituitary Gland

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Sample Questions

Q1) The difference between the receptors of peptide hormones and steroid hormones is:

A) There is no difference between the two types of receptors.

B) The receptors for peptide hormones are on the cell surface, whereas receptors for steroids are within the cell.

C) The receptors for peptide hormones can also receive steroid hormones, whereas the receptors for steroid hormones cannot.

D) Receptors for peptide hormones can receive more than one peptide, whereas the receptors for steroid hormones are hormone specific

Q2) Gonadotropin releasing hormone (GnRH):

A) Release is decreased by norepinephrine

B) Initiates the secretion of LH and FSH

C) Is released in a continuous concentration from the hypothalamus

D) Is a steroid hormone

E) Acts upon the posterior pituitary

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Chapter 39: Adrenocorticosteroids

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Sample Questions

Q1) The drug of choice for primary mineralocorticoid insufficiency is:

A) Fludrocortisone

B) Betamethasone

C) Fluticasone

D) Vasopressin

E) Lixivaptan

Q2) The chronic use of exogenous selective glucocorticoids leads to all of the following adverse effects except:

A) Increased gastric acid output

B) Increase in insulin resistance

C) Inhibition of osteoblastic activity

D) Metabolic alkalosis and mild hypernatremia

E) HPA axis suppression

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Chapter 40: Estrogens and Progestins

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Sample Questions

Q1) The use of estrogen plus progestin replacement therapy in postmenopausal women with an intact uterus:

A) Does not show an increase in thromboembolic disease

B) Should be limited to treatment for acute symptoms and for the shortest time possible

C) Is advisable as long as there is no family history of breast cancer

D) Decreases the incidence of ovarian cancer

E) Decreases mortality

Q2) Prolonged unopposed estrogen usage can lead to:

A) Gallbladder disease

B) Endometrial cancer

C) Thromboembolic disease

D) A, B, and C

E) B and C

Q3) The pharmacologic action of mifepristone (RU 486) is:

A) Blocks the production of progesterone

B) Changes the ratio between estrogen and progesterone

C) Blocks the receptors for progesterone

D) Blocks the receptors for estrogen

E) Blocks the receptors for testosterone

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Page 42

Chapter 41: Androgens and Antiandrogens

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Sample Questions

Q1) Benign prostatic hypertrophy is treated with finasteride. Finasteride acts to:

A) Block the conversion of testosterone to 5-alpha-dihydrotestosterone

B) Antagonize alpha-1 adrenergic receptors

C) Up regulate 5-alpha-reductase type II

D) Treat prostate cancer

E) Decrease free testosterone and estrogen levels

Q2) Androgen treatment can be used to increase hematopoiesis. This is due to:

A) Increased growth hormone production

B) Increased erythropoietin receptor sensitivity in bone marrow

C) GnRH receptor up regulation

D) Increased renal erythropoietin production

E) Increased muscle mass effect

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43

Chapter 42: Thyroid and Antithyroid Drugs

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Sample Questions

Q1) Why are corticosteroids often included in the treatment of hyperthyroidism?

A) To stabilize the erratic blood sugars of hyperthyroidism

B) To increase the catabolism of T to T

C) As an antiinflammatory agent for the thyroid

D) To counteract the increased delta-4 steroid reductase activity

E) To displace thyroxine-binding globulin from plasma proteins

Q2) Which of the following drugs interacts with thyroperoxidase and NADPH oxidases to inhibit the organification of iodide?

A) Perchlorate

B) Propylthiouracil

C) L-thyroxine

D) Lithium

E) Iopanoate

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Chapter

Diabetes Mellitus

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Sample Questions

Q1) The incretins are a group of hormones that:

A) Increase the concentration of gastric inhibitory peptide

B) Stimulate the release of growth hormone

C) Stimulate pancreatic beta cells and inhibit pancreatic alpha cells

D) Are synthesized in the pituitary gland

E) Increase blood glucose levels

Q2) The sulfonylurea class of medications:

A) Stimulates exocytosis of insulin-containing vesicles

B) Slows the hydrolysis of glucose in the plasma

C) Speeds potassium transport into insulin-containing cells

D) Are analogs of incretin hormones

E) Increases insulin sensitivity

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Chapter 44: Calcium-Regulating Hormones and Other Agents Affecting Bone

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Sample Questions

Q1) Regarding the pharmacologic class of bisphosphonates:

A) An example is teriparatide

B) At high doses inhibit osteoclasts

C) One example is calcitonin

D) Have less gastrointestinal side effects than other anti-osteoporosis drugs

E) Are usually prescribed for once-daily administration

Q2) Selective estrogen receptor modulators (SERMs) are known to inhibit bone resorption and prevent fractures. Their mechanism of action is:

A) Decrease production of interleukins that up regulate osteoclasts

B) Promote follicular production of progesterone, prostaglandin F , and proteolytic enzymes

C) Suppress the hypothalamic-pituitary axis

D) Decrease plasma calcium levels

E) Increase activity of the hypothalamic GnRH pulse generator

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Chapter 45: Principles of Antimicrobial Use

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Sample Questions

Q1) For the treatment of meningitis, all of the following could be effective except:

A) Rifampin

B) Chloramphenicol

C) Ampicillin

D) Gentamicin

E) Ciprofloxacin

Q2) Antimicrobial agents that disrupt or inhibit nucleic acid synthesis are:

A) Clindamycin and lincomycin

B) -Lactams, cephalosporins, and vancomycin

C) Quinolones and rifampin

D) Amikacin and gentamicin

E) Chloramphenicol

Q3) The aminoglycoside class of antibiotics has which of the following toxicities?

A) Ototoxicity

B) Nephrotoxicity

C) Hepatotoxicity

D) A and B

E) A, B, and C

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Chapter 46: Bacterial Cell Wall Synthesis Inhibitors

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Sample Questions

Q1) Which of the following antibiotics can cause what is known as "red-man syndrome"?

A) Cefoxitin

B) Ampicillin

C) Vancomycin

D) Gentamicin

E) Bacitracin

Q2) The antimicrobial class carbapenems includes:

A) Vancomycin

B) Cefepime

C) Meropenem

D) Aztreonam

E) Ceftriaxone

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Page 48

Chapter 47: Inhibitors of Bacterial Ribosomal Actions

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Sample Questions

Q1) Telithromycin is of the class:

A) Ketolides

B) Tetracyclines

C) Penicillins

D) Macrolides

E) Fluoroquinolones

Q2) Which of the following antimicrobial agents are bacteriostatic?

A) Streptomycin

B) Tetracycline

C) Penicillin

D) Mupirocin

E) Ciprofloxacin

Q3) The aminoglycoside class of antibiotics:

A) Are bacteriostatic

B) Includes ciprofloxacin

C) Are ineffective against anaerobic bacteria

D) Have a wide therapeutic window

E) Are most often used as oral preparations

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Chapter 48: Bacterial Folate Antagonists,

Antibacterial Agents

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Sample Questions

Q1) The combination of trimethoprim and sulfamethoxazole (TMP-SMZ) is frequently used because:

A) The TMP covers aerobic bacteria that the SMZ does not

B) The combination has no potential side effects

C) The SMZ potentiates the action of TMP

D) The SMZ covers anaerobic bacteria that TMP does not

E) The TMP covers fungi that SMZ does not

Q2) When the resistance of urinary tract Enterobacteriaceae to TMP-SMZ is higher than 20%, which of the following is the most commonly used drug class as alternative therapy?

A) Macrolide

B) Penicillin

C) Vancomycin

D) Fluoroquinolones

E) Tetracycline

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Chapter 49: Antimycobacterial Agents

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Sample Questions

Q1) First-line drugs for the treatment of tuberculosis include the following except:

A) Isoniazid

B) Rifampin

C) Flouroquinolones

D) Ethambutol

E) Rifapentine

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Chapter 50: Antifungal Agents

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Sample Questions

Q1) Amphotericin B is most commonly associated with the following adverse effect:

A) Gastric hemorrhage

B) Renal toxicity

C) Pulmonary fibrosis

D) Thyroid dysfunction

E) Congestive heart failure

Q2) One class of antifungal drugs inhibits glucan synthesis, thereby blocking production of the major structural component of the fungal cell wall. Which of the following drugs has this mechanism of action?

A) Polyenes

B) Azoles

C) Triazoles

D) Echinocandins

E) Griseofulvin

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Chapter 51: Antiviral Agents

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Sample Questions

Q1) The pharmacologic mechanism of action of didanosine is:

A) Nucleoside analog

B) Neuraminidase inhibitor

C) Nucleoside reverse transcriptase inhibitor

D) Non-nucleoside reverse transcriptase inhibitor

E) Protease inhibitor

Q2) The pharmacologic mechanism of action of acyclovir includes:

A) Inhibits DNA polymerases

B) Inhibits reverse transcriptase

C) Prevents viral entry into the cell

D) Spontaneous lysis of virus

E) Inhibits viral proteases

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Chapter 52: Drugs to Treat Parasitic Infections

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Sample Questions

Q1) Quinine has been used for centuries. Which of the following is true about quinine?

A) It inhibits ribosomal protein translation.

B) It inhibits cell membrane synthesis.

C) It inhibits the activity of heme polymerase.

D) It inhibits DNA polymerase.

E) It inhibits DNA gyrase.

Q2) Which of the following can serve as an antiprotozoal?

A) Chloroquine

B) Clindamycin

C) Doxycycline

D) Overmectin

E) Penicillin

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Chapter 53: Principles of Antineoplastic Drug Use

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Sample Questions

Q1) Which serves as the dose-limiting factor for most chemotherapeutic regimens?

A) Acute side effects such as nausea/vomiting, alopecia, bone marrow depression

B) Delayed side effects such as pulmonary fibrosis, sterility, neuropathy

C) Toxicity to surrounding normal tissues

D) Financial cost

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Chapter 54: Mechanisms of Action of Antineoplastic Drugs

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Sample Questions

Q1) Vinblastine falls within which class of antineoplastic drugs?

A) Plant alkyloids

B) Antimetabolites

C) Antibiotics

D) Alkylating agents

E) Hydroxyureas

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Chapter 55: Adjuvant Antineoplastic Drugs

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Sample Questions

Q1) Which of the following is a targeted antibody directed against the epidermal growth factor receptor (EGFR)?

A) Cetuximab

B) Gefitinib

C) Bortezomib

D) Goserelin

E) Tamoxifen

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