Emergency Nursing
Pre-Test Questions
Course Introduction
Emergency Nursing focuses on the advanced principles and practices required to provide immediate and effective care to patients experiencing urgent and life-threatening conditions. This course covers patient assessment, trauma management, rapid triage, airway and cardiac interventions, as well as care for pediatric, geriatric, and special populations in the emergency setting. Students will learn to apply critical thinking skills under pressure, communicate effectively with multidisciplinary teams, and utilize evidence-based protocols to manage emergencies. The course also addresses legal, ethical, and cultural considerations, preparing nurses to deliver safe and compassionate care in fast-paced and unpredictable environments.
Recommended Textbook
EKG Plain and Simple 3rd Edition by Karen Ellis RN
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15 Chapters
790 Verified Questions
790 Flashcards
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Chapter 1: Coronary Anatomy and Physiology
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Sample Questions
Q1) The coronary circulation supplies oxygenated blood to the myocardium during A)Ventricular ejection.
B)Diastole.
C)The entire cardiac cycle.
D)Isovolumetric contraction.
Answer: B
Q2) Heart valves serve what purpose?
A)They prevent blood from flowing forward.
B)They prevent oxygenated blood from flowing through the coronary arteries.
C)They prevent backflow of blood.
D)They control the heart's electrical signals.
Answer: C
Q3) The layer of the heart that is damaged during a heart attack is the A)Epicardium.
B)Pericardium.
C)Endocardium.
D)Myocardium.
Answer: D
Q4) The superior vena cava returns blood to the right atrium from the _____.
Answer: Head;chest;upper arms
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Chapter 2: Electrophysiology
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Sample Questions
Q1) The T wave represents
A)Atrial depolarization.
B)Atrial repolarization.
C)Ventricular depolarization.
D)Ventricular repolarization.
Answer: D
Q2) +20 mV is the
A)Resting transmembrane potential.
B)Transmembrane potential at the conclusion of phase 3 of the action potential.
C)Transmembrane potential at the conclusion of phase 0 of the action potential.
D)Transmembrane potential at the beginning of cardiac rest.
Answer: C
Q3) Normal conduction begins with the pacemaker of the heart,the _____. Answer: Sinus node
Q4) Normal QRS interval is _____ seconds or less than three small blocks. Answer: <0.12
Q5) The normal pacemaker of the heart is the AV node.
A)True
B)False
Answer: False
4
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Chapter 3: Lead Morphology and Placement
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Sample Questions
Q1) AVF
A)Is a bipolar lead.
B)Is a precordial lead.
C)Is an augmented lead.
D)Has its positive pole on the left arm.
Answer: C
Q2) In the precordial leads,V1's QRS complex
A)Should be a primarily negative deflection.
B)Should be a primarily positive deflection.
C)Should be isoelectric.
D)Represents atrial depolarization.
Answer: A
Q3) Which of the following is NOT a bipolar lead?
A)Lead II
B)AVF
C)Lead I
D)Lead III
Answer: B
Q4) The tallest QRS complex should be in lead _____.
Answer: II
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Chapter 4: Technical Aspects of the Ekg
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Sample Questions
Q1) On your patient's 12-lead EKG,lead I's waves and complexes are completely negative.AVR's waves and complexes are completely positive.The most likely cause of this is
A)Dextrocardia (Heart is on the right side of the body instead of the left).
B)Axis deviation from an MI.
C)Axis deviation from ventricular tachycardia.
D)Right and left arm leads inadvertently reversed.
Q2) A rhythm that looks lethal cannot be artifact.
A)True
B)False
Q3) CPR artifact is seen only during CPR.
A)True
B)False
Q4) To minimize artifact,what must be done?
A)Attach electrode patches securely
B)Tell the patient not to breathe during the EKG
C)Tell the patient not to move during the EKG
D)All but B
Q5) The EKG machine control feature that controls the size of the waves and complexes is the _____.
Page 6
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Chapter 5: Calculating Heart Rate
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Sample Questions
Q1) An irregular rhythm is one in which
A)The R-R intervals vary "all over the place."
B)The R-R intervals vary by only one or two little blocks.
C)There are premature beats or pauses that interrupt the otherwise regular rhythm.
D)The QRS complexes do not look alike.
Q2) Regularity is concerned with the constancy of QRS complexes.
A)True
B)False
Q3) Which of the following is a method of calculating heart rate?
A)Six-second strip method
B)The QT interval method
C)The P-P interval method
D)All of the above
Q4) If the QRS complexes are all 50 little blocks apart,the heart rate is _____.
Q5) Which of the following is NOT a method of calculating heart rate?
A)The six-second strip method.
B)The little block method.
C)The memory method.
D)The P-P interval method.
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Chapter 6: How to Interpret a Rhythm Strip
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Sample Questions
Q1) Dysrhythmias are
A)Normal heart rhythms.
B)Abnormal heart rhythms.
C)Rhythms originating in the sinus node.
D)Rhythms that cause no symptoms.
Q2) Sinus rhythms should have narrow QRS complexes of uniform shape.
A)True
B)False
Q3) The normal rhythm originating in the sinus node should have a heart rate
A)Greater than 100.
B)Less than 60.
C)Between 40 and 60.
D)Between 60 and 100.
Q4) A heart rate less than 60 is said to be a
A)Tachycardia.
B)Bradycardia.
C)Tachyarrhythmia.
D)Bundle branch block.
Q5) The distance between consecutive P waves is called the _____.
Q6) A dysrhythmia is an _____ heart rhythm.
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Chapter 7: Rhythms Originating in the Sinus Node
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Sample Questions
Q1) Once the impulse originates in the sinus node,it travels next to the _____ by way of the interatrial tracts.
Q2) In sinus rhythms,the QRS complexes should have an interval of _____.
Q3) In a sinus arrest,the sinus node_____ firing for a time.
Q4) Atropine's mode of action is to
A)Speed up the rate of sinus node firing and speed conduction through the AV node.
B)Speed impulse conduction through the bundle branches and AV node.
C)Slow the rate of conduction through the AV node and slow sinus node firing.
D)Speed sinus node firing and slow AV node conduction.
Q5) Which of the following has a heart rate less than 60?
A)Sinus rhythm
B)Sinus bradycardia
C)Sinus tachycardia
D)Atrial tachycardia
Q6) Sinus block can occur at any heart rate.
A)True
B)False
Q7) The primary treatment of sinus tachycardia is _____.
Q8) _____ is the only normal heart rhythm.
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Chapter 8: Rhythms Originating in the Atria
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Sample Questions
Q1) The most common cause of an unexplained pause is a(n)
A)Nonconducted PAC.
B)Sinus arrest.
C)Sinus block.
D)Atrial tachycardia.
Q2) Atrial tachycardia is characterized by
A)Abnormal P waves preceding the regular QRS complexes.
B)Sawtooth waves between the QRS complexes.
C)Undulating,fibrillatory baseline between the irregular QRS complexes.
D)A heart rate of 250-350.
Q3) Atrial fibrillation can cause a drop in cardiac output because it causes
A)A loss of the atrial kick.
B)The ventricles to contract more forcefully.
C)The AV valves to remain open too long.
D)The sinus node to fire more often.
Q4) Flutter waves are often described as sawtooth- or picket-fence-shaped waves.
A)True
B)False
Q5) Paroxysmal atrial tachycardia is an atrial tachycardia that usurps the underlying
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Chapter 9: Rhythms Originating in the Av Junction
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Sample Questions
Q1) Junctional rhythm has a heart rate the same as sinus bradycardia.
A)True
B)False
Q2) Junctional tachycardia is usually a result of escape.
A)True
B)False
Q3) Junctional tachycardia has a heart rate of
A)40-60.
B)60-100.
C)Less than 40.
D)Greater than 100.
Q4) Junctional bradycardia must have a heart rate less than 20.
A)True
B)False
Q5) In which rhythm is decreased cardiac output most likely to be a concern?
A)Sinus rhythm
B)Accelerated junctional rhythm
C)Junctional bradycardia
D)Junctional rhythm
Q6) Atropine should be given for junctional bradycardia if the patient is _____.
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Chapter 10: Rhythms Originating in the Ventricles
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Sample Questions
Q1) Asystole is best treated with electrical shock to the heart.
A)True
B)False
Q2) All the following are appropriate treatment for asystole EXCEPT
A)Electrical shock to the heart.
B)CPR.
C)Oxygen.
D)Pacemaker.
Q3) Ventricular fibrillation has
A)No P waves or QRS complexes.
B)P waves but no QRS complexes.
C)QRS complexes but no T waves.
D)P waves and QRS complexes.
Q4) Multifocal couplets are
A)Long runs of ventricular tachycardia.
B)A pair of PVCs that look the same.
C)A pair of PVCs that look different.
D)Reason to start CPR.
Q5) Accelerated idioventricular rhythm has a heart rate between _____.
Q6) The treatment of choice for ventricular fibrillation is _____.
Page 12
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Chapter 11: Av Blocks
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Sample Questions
Q1) Why does atropine not work when the block is at the bundle branches?________________.
.
Q2) Treatment for first-degree AV block involves A)Atropine.
B)Digitalis.
C)Electrical shock to the heart.
D)Removing the cause.
Q3) The most dangerous of the AV blocks is Mobitz II second-degree AV block.
A)True B)False
Q4) In third-degree AV block,none of the sinus impulses get through to the ventricles. A)True B)False
Q5) The origin of the P waves in AV blocks is the _____.
Q6) Third-degree AV block usually needs no treatment. A)True B)False
Q7) Wenckebach is also known as _____.
Page 13
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Chapter 12: How to Interpret a 12-Lead Ekg
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Sample Questions
Q1) A disorder in which there is too much potassium in the bloodstream is called
A)Hyperkalemia.
B)Hypokalemia.
C)Hypercalcemia.
D)Hypocalcemia.
Q2) RVH stands for _____.
Q3) Axis deviation can be a normal variant.
A)True
B)False
Q4) If the QRS in I is negative and the QRS in AVF is positive,the axis is A)Normal.
B)Right axis deviation.
C)Left axis deviation.
D)Indeterminate axis.
Q5) If leads I and AVF are both negative,the axis is indeterminate. A)True
B)False
Q6) Left bundle branch block has a QRS interval of at least _____ seconds.
Q7) An axis of +120 degrees is _____ deviation.
Q8) If lead I and AVF both have negative QRS complexes,the axis is _____.
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Chapter 13: Myocardial Infarction
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Sample Questions
Q1) Hyperacute changes of an MI are those seen in the MI's earliest stages.
A)True
B)False
Q2) Inferior-lateral MI has indicative changes in leads _____.
Q3) Name the three Is of infarction._____.
Q4) The leads one looks at to find an inferior MI are _____.
Q5) Ischemia causes myocardial tissue to turn black.
A)True
B)False
Q6) An acute inferior wall STEMI has ST elevation in leads
A)I,AVL,V5-6.
B)V1-4.
C)II,III,AVF.
D)V1-2.
Q7) Which of the following is a reciprocal change seen in the area opposite an infarct?
A)ST elevation
B)ST depression
C)Tall,pointy T waves
D)Widened QRS complexes
Page 15
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Chapter 14: Medications and Electrical Therapy
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Sample Questions
Q1) Which combination of medications would be appropriate to use for the patient in asystole?
A)Atropine and lidocaine
B)Epinephrine and amiodarone
C)Verapamil and digitalis
D)Atropine and epinephrine
Q2) The most common pacemaker malfunctions include ALL BUT which of the following?
A)Failure to fire
B)Failure to capture
C)Failure to sense
D)Failure to repolarize
Q3) Atrial fibrillation should be defibrillated rather than cardioverted.
A)True
B)False
Q4) Which of the following is NOT used in the treatment of rapid ventricular arrhythmias?
A)Lidocaine
B)Amiodarone
C)Procainamide
D)Digitalis
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Chapter 15: Diagnostic Electrocardiography
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Sample Questions
Q1) If the stress test is positive but the angiogram is negative,the stress test is said to be a false positive.
A)True
B)False
Q2) On the morning of the stress test,it is important that the patient
A)Eat a big meal for energy.
B)Fast for 12 hours to avoid nausea during the test.
C)Semi-fast for four hours before the test.
D)Eat as usual.
Q3) The most common methods of stress testing include which of the following?
A)Arm ergometer and treadmill
B)Bicycle ergometer and stair-stepper
C)Treadmill and bicycle ergometer
D)Stair-stepper and arm ergometer
Q4) Running on a treadmill is what kind of exercise?
A)Static
B)Isometric
C)Isotonic
D)Isovolumetric
Q5) Thallium-201 enters the heart in much the same way as the ion _____.
Page 17
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