Clinical Laboratory Procedures
Practice Exam
Course Introduction
Clinical Laboratory Procedures explores the fundamental techniques and methodologies used in medical laboratory settings to aid in the diagnosis, treatment, and prevention of diseases. The course covers specimen collection and handling, laboratory safety protocols, quality control measures, and standard operating procedures for conducting hematology, urinalysis, clinical chemistry, and microbiology tests. Emphasis is placed on developing practical laboratory skills, understanding the principles behind common diagnostic tests, interpreting laboratory results, and maintaining accurate records, ensuring that students are well-prepared for clinical practice in healthcare environments.
Recommended Textbook
The Phlebotomy Textbook 3rd Edition by Susan King Strasinger
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16 Chapters
1205 Verified Questions
1205 Flashcards
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Chapter 1: Phlebotomy and the Health-Care Delivery System
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59 Verified Questions
59 Flashcards
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Sample Questions
Q1) A phlebotomist who encourages a patient to express his or her concerns is:
A) exhibiting good listening skills.
B) demonstrating positive body language.
C) having difficulty finding a vein.
D) avoiding returning to the laboratory.
Answer: A
Q2) The food service and housekeeping departments are part of nursing services.
A)True
B)False
Answer: False
Q3) Name the hospital department that uses radionucleotides in diagnosing and treating disease.
A) Radiation therapy
B) Nuclear medicine
C) Pharmacy
D) Electroencephalography
Answer: B
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Page 3
Chapter 2: The Clinical Laboratory
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67 Verified Questions
67 Flashcards
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Sample Questions
Q1) The primary liaison between the medical staff and the laboratory staff is the:
A) laboratory manager.
B) pathologist.
C) section supervisor.
D) cytologist.
Answer: B
Q2) Tests for ketones, urobilinogen, nitrite, and pH are part of a:
A) general health profile.
B) complete blood count.
C) urinalysis.
D) ova and parasites examination.
Answer: C
Q3) Which of the following tests should be returned to the laboratory first to ensure accurate results?
A) Prothrombin time
B) Blood group and type
C) Complete blood count
D) Blood culture
Answer: A
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Page 4
Chapter 3: Regulatory, Ethical, and Legal Issues
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84 Verified Questions
84 Flashcards
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Sample Questions
Q1) Risk management departments do all of the following except:
A) develop policies to protect employers from financial losses.
B) identify potential risks to employees and patients.
C) evaluate changes to improve safety.
D) fill out incident reports for phlebotomists.
Answer: D
Q2) Under the Health Insurance Portability and Accountability Act (HIPAA), written consent by the patient is required to:
A) perform point-of-care testing (POCT).
B) report test results to health-care providers.
C) generate electronic requisitions.
D) send specimens to a reference laboratory.
Answer: B
Q3) The accuracy of laboratory test results and phlebotomy techniques is monitored through the process of:
A) Continuous Quality Improvement (CQI).
B) Quality Assurance (QA).
C) Quality Control (QC).
D) Total Quality Management (TQM).
Answer: C
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Chapter 4: Safety and Infection Control
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56 Verified Questions
56 Flashcards
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Sample Questions
Q1) The document designed to protect phlebotomists from contacting hepatitis is the:
A) Material Safety Data Sheets.
B) Chemical Hygiene Plan.
C) procedure manual.
D) Bloodborne Pathogen Exposure Control Plan.
Q2) If a fire is discovered, the phlebotomist should do all of the following except:
A) pull the fire alarm.
B) use an appropriate fire extinguisher.
C) evacuate leaving the door open.
D) evacuate using the stairs.
Q3) The first thing to do when encountering a fire is to:
A) sound the fire alarm.
B) use the fire extinguisher.
C) evacuate the area.
D) remove anyone in danger.
Q4) An infection contracted by a patient while in the hospital is termed:
A) antibiotic-resistant.
B) staphylococcal.
C) nosocomial.
D) unfortunate.
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Chapter 5: Basic Medical Terminology
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42 Verified Questions
42 Flashcards
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Sample Questions
Q1) The combining form <b>path/o</b> refers to:
A) blood.
B) bacteria.
C) fever.
D) disease.
Q2) nephr/o
A)Circulatory
B)Digestive
C)Endocrine
D)Lymphatic
E)Nervous
F)Renal
G)Reproductive
H)Skeletal
Q3) The most commonly used combining vowel is:
A) "i"
B) "a"
C) "o"
D) "u"
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Page 7
Chapter 6: Basic Anatomy and Physiology
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139 Verified Questions
139 Flashcards
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Sample Questions
Q1) Lymph nodes are located in all of the following areas of the body except the:
A) inguinal.
B) cervical.
C) bone marrow.
D) axillary.
Q2) The major white blood cell associated with the immune system is the:
A) lymphocyte.
B) neutrophil.
C) eosinophil.
D) basophil.
Q3) All of the following are parts of the immune system except:
A) B lymphocytes and T lymphocytes.
B) sympathetic system and parasympathetic system.
C) humoral immunity and cell-mediated immunity.
D) antigens and antibodies.
Matching
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Chapter 7: Circulatory System
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58 Verified Questions
58 Flashcards
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Sample Questions
Q1) The blood vessels that carry deoxygenated blood to the heart are:
A) arteries.
B) alveoli.
C) capillaries.
D) veins.
Q2) Select the single answer below that correctly fills in the names of the coagulation tests described. The __________________test is performed to monitor patients on Coumadin therapy, and the _________________test is performed to monitor patients on Heparin therapy:
A) fibrin degradation products (FDP)/prothrombin time (PT)
B) prothrombin time (PT)/fibrinogen
C) prothrombin time (PT)/activated partial thromboplastin time (APTT or PTT)
D) bleeding time (BT)/platelet count (plt)
Q3) All of the following are tests to monitor the coagulation system except the:
A) reticulocyte count.
B) prothrombin time.
C) activated partial thromboplastin time.
D) D-dimer.
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Chapter 8: Venipuncture Equipment
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68 Verified Questions
68 Flashcards
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Sample Questions
Q1) Lavender stopper tubes can be used for all of the following except:
A) coagulation tests.
B) platelet counts.
C) differential counts.
D) hematocrits.
Q2) A butterfly would be primarily used to collect blood from the: A) heel.
B) antecubital vein.
C) finger.
D) hand.
Q3) Drawing a lavender stopper tube before an SST tube can cause a falsely:
A) increased calcium value.
B) decreased glucose value.
C) decreased calcium value.
D) increased glucose value.
Q4) Tubes containing powdered anticoagulant do not require mixing.
A)True
B)False
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Chapter 9: Routine Venipuncture
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61 Verified Questions
61 Flashcards
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Sample Questions
Q1) Activate needle safety device.
G)7
H)8
Q2) The veins that are the easiest to anchor are the:
A) hand veins.
B) cephalic veins.
C) basilic veins.
D) median cubital veins.
Q3) To aid in specimen processing, requisition forms may contain:
A) special collection information.
B) the phlebotomist's initials.
C) a bar code.
D) the patient's date of birth.
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Page 11
Chapter 10: Venipuncture Complications and
Preexamination Variables
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93 Verified Questions
93 Flashcards
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Sample Questions
Q1) A phlebotomist with a request for a stat glucose does not find the patient in the room. The phlebotomist should:
A) return the requisition slip to the laboratory.
B) check back after completing rounds.
C) check the patient's location with the nursing station.
D) ask the hospital telephone operator to page the patient.
Q2) Specimens for test substances that exhibit diurnal variation must be collected:
A) at specific times.
B) from fasting patients.
C) when patients are lying down.
D) when patients are in a basal state.
Q3) Stress
A)Decreased glucose
B)Decreased white blood cell (WBCs) and platelets
C)Increased cholesterol and triglycerides
D)Increased hemoglobin
E)Increased PO<sub>2</sub> and white blood cells (WBCs)
F)Increased prothrombin time (PT) and activated partial thromboplastin time (APTT)
Q4) What information should be added to the requisition forms for patient B?
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Chapter 11: Special Blood Collection
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66 Verified Questions
66 Flashcards
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Sample Questions
Q1) The timing for a glucose tolerance test (GTT) begins:
A) after collection of the fasting sample.
B) when the patient begins drinking the glucose.
C) when the patient finishes drinking the glucose.
D) 30 minutes after the glucose is finished.
Q2) The purpose of sodium polyanetholsulfonate in a blood culture bottle is to:
A) inhibit bacterial growth.
B) prevent clotting.
C) prevent contamination.
D) identify bacterial growth.
Q3) Specimens for cold agglutinins must be:
A) transported on ice.
B) drawn in a green stopper tube.
C) processed in a refrigerated centrifuge.
D) kept warm.
Q4) After collection, blood cultures are delivered to:
A) blood bank.
B) hematology.
C) serology.
D) microbiology.
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Chapter 12: Dermal Puncture
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126 Verified Questions
126 Flashcards
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Sample Questions
Q1) Capillary punctures on newborns are performed on the:
A) index finger.
B) plantar area of the heel.
C) back of the heel.
D) earlobe.
Q2) Pushing instead of pulling the blood with the spreader slide produces a blood smear that:
A) is too thick.
B) is too thin.
C) has streaks in the feathered edge.
D) contains holes.
Q3) Complications associated with skin puncture include:
1. hemolysis due to alcohol
2. osteomyelitis
3. tissue fluid contamination
4. hematoma
A) 1 and 3
B) 1, 2, and 3
C) 1 only
D) 4 only
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Chapter 13: Quality Assessment and Management in Phlebotomy
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99 Verified Questions
99 Flashcards
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Sample Questions
Q1) Six Sigma methodology:
A) is a means of eliminating errors when properly applied to a process.
B) is a statistical modification of the original plan-do-check-act (PDCA) process.
C) has the primary goal of reducing spending on safety devices and practices.
D) is only used in the manufacturing and construction industries.
Q2) Quality system essentials (QSEs) form the basis of a laboratory's quality management system (QMS) and contain the management information needed for a laboratory to perform quality work. Which of the following items might be studied as part of an examination of a laboratory's process improvement?
A) Evidence of utilization of Six Sigma methodology
B) Evidence of an emphasis on correcting mistakes
C) Evidence of use of quality control charts
D) Evidence of use of current information technology hardware
Q3) In a laboratory test, variables:
A) can occur in all phases of testing.
B) have been eliminated using modern instruments.
C) occur during the analytical phase only.
D) are so unpredictable they cannot be studied.
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Chapter 14: Arterial Blood Collection
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59 Flashcards
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Sample Questions
Q1) Capillary blood gas specimens collected in heparinized pipettes:
A) are not suitable for analysis.
B) are mixed using a magnet.
C) do not require mixing.
D) should not be cooled during transport.
Q2) Following arterial specimen collection, pressure is applied to the puncture site for:
A) 2 minutes by the phlebotomist.
B) 2 minutes by the phlebotomist or patient.
C) 3 to 5 minutes by the phlebotomist.
D) 10 minutes by the phlebotomist or patient.
Q3) The presence of excess heparin in the syringe used to collect arterial blood gases (ABGs) will:
A) increase clotting speed.
B) decrease the pH.
C) decrease the anticoagulant effect of heparin.
D) increase the pH.
Q4) The color of arterial blood is dark red.
A)True
B)False
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Chapter 15: Point-Of-Care Testing
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59 Flashcards
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Sample Questions
Q1) A patient with a cholesterol result of 300 mg/dL is in danger of developing:
A) colorectal cancer.
B) coronary artery disease.
C) diabetes mellitus.
D) liver disease.
Q2) Immunoassay kits must contain all of the following except:
A) reaction cards.
B) positive and negative controls.
C) extraction solution.
D) color developer.
Q3) A urinalysis should be performed:
A) within 10 minutes of specimen collection.
B) within 2 hours of specimen collection.
C) before the end of the shift.
D) when laboratory personnel are present.
Q4) Transcutaneous bilirubin testing:
A) is an invasive procedure.
B) cannot be used to monitor the need for an exchange transfusion.
C) is not recommended as a screening procedure.
D) is performed on the plantar surface of the heel.
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Chapter 16: Additional Duties of the Phlebotomist
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69 Flashcards
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Sample Questions
Q1) Phlebotomists do not provide verbal instructions for specimen collection to patients.
A)True
B)False
Q2) To prevent hemolysis of donor blood:
A) hemostats are used to stop the flow of blood.
B) donors are not asked to clench their fists.
C) large-bore needles are used for collection.
D) alcohol is not used during site preparation.
Q3) Which of the following tubes can be centrifuged immediately after collection?
A) Gold Hemogard stopper
B) Light blue stopper
C) Red stopper
D) Yellow/gray stopper
Q4) After centrifuging a tube of blood from a patient with polycythemia, the:
A) amount of serum obtained will be decreased.
B) serum will appear lipemic.
C) plasma will be hemolyzed.
D) amount of plasma obtained will be increased.
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