Certified Phlebotomy Technician (CPT) MCQ Flashcards
7 cards from real Certified Phlebotomy Technician Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Certified Phlebotomy Technician (CPT) MCQ flashcards as text
Which additive in a gray-top tube is used to inhibit glycolysis for glucose testing?
Answer: Sodium fluoride
Sodium fluoride (with potassium oxalate) in gray-top tubes inhibits glycolytic enzymes to preserve glucose levels.
A patient reports feeling dizzy and lightheaded during a venipuncture. What is the FIRST action the phlebotomist should take?
Answer: Remove the needle and have the patient lie down
If a patient shows signs of syncope, immediately remove the needle and position the patient safely (lying down or head between knees) to restore blood flow to the brain.
When performing a capillary puncture on an adult finger, which area should be avoided?
Answer: The very tip and center of the finger
The tip and center of the finger should be avoided because they have more nerve endings and the skin is thinner, increasing pain and risk of bone puncture.
Which of the following BEST describes the purpose of the 'order of draw' in multi-tube venipuncture?
Answer: To prevent cross-contamination of tube additives
The order of draw is established to prevent carry-over of additives from one tube to the next, which could interfere with test results.
A specimen for prothrombin time (PT) testing requires a light blue-top tube. What is the correct blood-to-additive ratio?
Answer: 9:1
Light blue-top tubes contain sodium citrate and require a 9:1 blood-to-anticoagulant ratio to ensure accurate coagulation results.
Which federal law governs the handling and disposal of biohazardous waste and sharps in the clinical laboratory?
Answer: OSHA Bloodborne Pathogens Standard
The OSHA Bloodborne Pathogens Standard (29 CFR 1910.1030) mandates proper handling, disposal, and PPE requirements related to blood and other potentially infectious materials.
Which vein is generally considered the FIRST choice for routine adult venipuncture?
Answer: Median cubital vein
The median cubital vein in the antecubital fossa is the preferred first-choice site because it is large, well-anchored, and generally less painful to puncture.