Medca Phlebotomy Exam Questions
and Answers | Latest Version |
2025/2026 | Correct & Verified
Why is it important to verify a patient’s identity before drawing blood?
✔✔To ensure the specimen is correctly matched to the patient
Which hand hygiene method is recommended before starting a blood draw?
✔✔Washing hands with soap and running water or using alcohol-based sanitizer
What is the first step in preparing a patient for venipuncture?
✔✔Explain the procedure and obtain consent
Why should the antecubital fossa be the preferred site for venipuncture?
✔✔It provides easy access to large, superficial veins
Why is it important to allow alcohol to dry before inserting the needle?
✔✔To prevent stinging and avoid hemolysis of the sample
1
,Which vein is most commonly used for routine blood collection?
✔✔Median cubital vein
What should be done if a patient has fragile or rolling veins?
✔✔Use a smaller gauge needle and stabilize the vein
Why should the first tube be discarded or a “waste tube” collected in certain coagulation tests?
✔✔To avoid contamination with tissue fluids and ensure accurate results
What is the recommended procedure if a patient faints during venipuncture?
✔✔Stop the procedure, lower the patient, and ensure airway and safety
How should a phlebotomist handle a patient with an IV in the arm?
✔✔Draw blood from the opposite arm or below the IV if unavoidable
Why is it important to invert tubes containing anticoagulants immediately after collection?
✔✔To mix blood with the additive and prevent clotting
2
,What is the primary purpose of using a tourniquet during venipuncture?
✔✔To make veins more visible and easier to palpate
What is the function of a lavender-top tube?
✔✔Contains EDTA for hematology tests like CBC
Which tube is preferred for serum collection?
✔✔Red or serum separator tube
Why is it important to label specimens immediately after collection?
✔✔To prevent misidentification and ensure accurate testing
What should a phlebotomist do if the blood flow is slow during a draw?
✔✔Check needle position, release tourniquet if prolonged, and reposition if necessary
Which vein should be avoided due to risk of nerve damage?
✔✔Cephalic vein near the wrist and median nerve area
3
, Why is it important to follow the correct order of draw?
✔✔To prevent cross-contamination of additives and inaccurate test results
What is the purpose of performing a heel stick on an infant?
✔✔To collect small volumes of blood safely
Why is it important to use gloves during venipuncture?
✔✔To protect both the patient and phlebotomist from bloodborne pathogens
Which action helps prevent hemolysis of a blood sample?
✔✔Gentle inversion of tubes and avoiding excessive force during collection
What is the primary reason to avoid probing with the needle?
✔✔To prevent injury to the vein and surrounding tissue
Why is proper patient positioning important during blood collection?
✔✔To ensure patient comfort and reduce the risk of fainting
4
and Answers | Latest Version |
2025/2026 | Correct & Verified
Why is it important to verify a patient’s identity before drawing blood?
✔✔To ensure the specimen is correctly matched to the patient
Which hand hygiene method is recommended before starting a blood draw?
✔✔Washing hands with soap and running water or using alcohol-based sanitizer
What is the first step in preparing a patient for venipuncture?
✔✔Explain the procedure and obtain consent
Why should the antecubital fossa be the preferred site for venipuncture?
✔✔It provides easy access to large, superficial veins
Why is it important to allow alcohol to dry before inserting the needle?
✔✔To prevent stinging and avoid hemolysis of the sample
1
,Which vein is most commonly used for routine blood collection?
✔✔Median cubital vein
What should be done if a patient has fragile or rolling veins?
✔✔Use a smaller gauge needle and stabilize the vein
Why should the first tube be discarded or a “waste tube” collected in certain coagulation tests?
✔✔To avoid contamination with tissue fluids and ensure accurate results
What is the recommended procedure if a patient faints during venipuncture?
✔✔Stop the procedure, lower the patient, and ensure airway and safety
How should a phlebotomist handle a patient with an IV in the arm?
✔✔Draw blood from the opposite arm or below the IV if unavoidable
Why is it important to invert tubes containing anticoagulants immediately after collection?
✔✔To mix blood with the additive and prevent clotting
2
,What is the primary purpose of using a tourniquet during venipuncture?
✔✔To make veins more visible and easier to palpate
What is the function of a lavender-top tube?
✔✔Contains EDTA for hematology tests like CBC
Which tube is preferred for serum collection?
✔✔Red or serum separator tube
Why is it important to label specimens immediately after collection?
✔✔To prevent misidentification and ensure accurate testing
What should a phlebotomist do if the blood flow is slow during a draw?
✔✔Check needle position, release tourniquet if prolonged, and reposition if necessary
Which vein should be avoided due to risk of nerve damage?
✔✔Cephalic vein near the wrist and median nerve area
3
, Why is it important to follow the correct order of draw?
✔✔To prevent cross-contamination of additives and inaccurate test results
What is the purpose of performing a heel stick on an infant?
✔✔To collect small volumes of blood safely
Why is it important to use gloves during venipuncture?
✔✔To protect both the patient and phlebotomist from bloodborne pathogens
Which action helps prevent hemolysis of a blood sample?
✔✔Gentle inversion of tubes and avoiding excessive force during collection
What is the primary reason to avoid probing with the needle?
✔✔To prevent injury to the vein and surrounding tissue
Why is proper patient positioning important during blood collection?
✔✔To ensure patient comfort and reduce the risk of fainting
4
