AAB MEDICAL TECHNOLOGIST – CHEMISTRY EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS| A+ GRADED |GUARANTEED PASS!!
1.The primary reason for using a syringe transfer device is to - ANSWER safely transfer blood from a
syringe into ETS tubes.
2. A phlebotomist most likely NOT use a butterfly for what type of patients? - ANSWER A patient with
resilient and bouncy veins
3. A postprandial specimen is collected - ANSWER directly after a meal is consumed.
4.What is the correct procedure to stop the bleeding at a venipuncture site? - ANSWER Place a gauze
pad over the site and hold pressure for 5 to 15 minutes
5. The phlebotomist has to prepare a blood smear for a leukocyte alkaline phosphatase (LAP). What is
the correct procedure? - ANSWER Perform the skin puncture, wipe away the first drop of blood and then
touch the slide to the next drop of blood
6. The color-coded tube that is most frequently associated with coagulation tests is - ANSWER light blue
7. How long should a tourniquet be placed around a patient's arm? - ANSWER No more than one minute
8. After the last tube is filled, what is done next? - ANSWER Filled tube is removed from the holder
9. Following venipuncture, what should be applied to the venipuncture site? - ANSWER Clean, sterile
gauze pad
10. What is the most appropriate procedure when preparing a patient for blood specimen collection? -
ANSWER f a patient asks the phlebotomist to explain the purpose of a blood test, the question should be
referred to the doctor or nurse to answer.
,11. When is a phlebotomist allowed to perform a venipuncture on an ankle vein? - ANSWER When all
other options have been exhausted and the physician has given approval
12. What information would be indicated on the label of a blood bank specimen? - ANSWER Patient's
date of birth, Date and time of specimen collection, and Patient's full name including middle initial
13. An individual comes in for an autologous donation, what is this person coming to do? - ANSWER
Donating their own blood for their own use
14. A fully-stocked phlebotomy tray readily accessible to the phlebotomy technician while performing
venipuncture should include: - ANSWER Needles of various sizes, Needle holder/adapter, and Evacuated
blood collection tubes.
15. Prior to bandaging the puncture site the phlebotomist should - ANSWER examine the site for
bleeding.
16. The most critical part of a blood culture collection is - ANSWER skin antisepsis of the collection site.
17. Complete clotting of a blood specimen can take up to - ANSWER 30 minutes at room temperature
18. A basal-state specimen, used to establish reference ranges for inpatients, is best collected - ANSWER
early in the morning, after fasting for 12 hours.
19. A falsely decreased blood alcohol level may be obtained if - ANSWER the tube is only partially filled.
20. The phlebotomist places the blood specimen in circles on special filter paper, for what test? -
ANSWER PKU: Phenylketonuria
21.Color coding indicates a needle's - ANSWER gauge
22. Why is it necessary to wipe the first drop of blood away when performing a capillary procedure? -
ANSWER To reduce interstitial fluid contamination
, 23. The heel is the recommended site for collection of capillary puncture specimens on infants and the
phlebotomist is going to stick in the posterior curvature of the heel. Is this correct? - ANSWER No the
medial plantar surface of the heel is the best site to prevent possible bone damage
24. Heparinized plasma is preferred over serum for some chemistry tests. Heparin prevents clotting by -
ANSWER inactivating thrombin.
25. Which of the following may cause hematoma formation? - ANSWER Having patient bend elbow to
apply pressure
26. By bracing the hand while holding the needle assembly against the patients arm you - ANSWER
prevent excess needle movement.
27. When performing a capillary blood collection, the first blood drop is wiped away because - ANSWER
the first drop typically has more tissue fluid.
28. Preanalytical errors are mistakes made - ANSWER before laboratory testing
29. What antiseptic should the phlebotomy technician use to collect a blood culture? - ANSWER
Chlorhexidine gluconate
30. The main reason not to use expired evacuated tubes for blood specimen collection is - ANSWER they
may exhibit incomplete filling.
31. Older patients are more prone to hematoma formation because - ANSWER their veins have
decreased elasticity.
32. What abnormal color will be observed in serum collected from a patient with jaundice due to
elevated bilirubin levels? - ANSWER Yellow
33. Which substance has a higher concentration in capillary blood than in venous blood? - ANSWER
Glucose
CORRECT ANSWERS| A+ GRADED |GUARANTEED PASS!!
1.The primary reason for using a syringe transfer device is to - ANSWER safely transfer blood from a
syringe into ETS tubes.
2. A phlebotomist most likely NOT use a butterfly for what type of patients? - ANSWER A patient with
resilient and bouncy veins
3. A postprandial specimen is collected - ANSWER directly after a meal is consumed.
4.What is the correct procedure to stop the bleeding at a venipuncture site? - ANSWER Place a gauze
pad over the site and hold pressure for 5 to 15 minutes
5. The phlebotomist has to prepare a blood smear for a leukocyte alkaline phosphatase (LAP). What is
the correct procedure? - ANSWER Perform the skin puncture, wipe away the first drop of blood and then
touch the slide to the next drop of blood
6. The color-coded tube that is most frequently associated with coagulation tests is - ANSWER light blue
7. How long should a tourniquet be placed around a patient's arm? - ANSWER No more than one minute
8. After the last tube is filled, what is done next? - ANSWER Filled tube is removed from the holder
9. Following venipuncture, what should be applied to the venipuncture site? - ANSWER Clean, sterile
gauze pad
10. What is the most appropriate procedure when preparing a patient for blood specimen collection? -
ANSWER f a patient asks the phlebotomist to explain the purpose of a blood test, the question should be
referred to the doctor or nurse to answer.
,11. When is a phlebotomist allowed to perform a venipuncture on an ankle vein? - ANSWER When all
other options have been exhausted and the physician has given approval
12. What information would be indicated on the label of a blood bank specimen? - ANSWER Patient's
date of birth, Date and time of specimen collection, and Patient's full name including middle initial
13. An individual comes in for an autologous donation, what is this person coming to do? - ANSWER
Donating their own blood for their own use
14. A fully-stocked phlebotomy tray readily accessible to the phlebotomy technician while performing
venipuncture should include: - ANSWER Needles of various sizes, Needle holder/adapter, and Evacuated
blood collection tubes.
15. Prior to bandaging the puncture site the phlebotomist should - ANSWER examine the site for
bleeding.
16. The most critical part of a blood culture collection is - ANSWER skin antisepsis of the collection site.
17. Complete clotting of a blood specimen can take up to - ANSWER 30 minutes at room temperature
18. A basal-state specimen, used to establish reference ranges for inpatients, is best collected - ANSWER
early in the morning, after fasting for 12 hours.
19. A falsely decreased blood alcohol level may be obtained if - ANSWER the tube is only partially filled.
20. The phlebotomist places the blood specimen in circles on special filter paper, for what test? -
ANSWER PKU: Phenylketonuria
21.Color coding indicates a needle's - ANSWER gauge
22. Why is it necessary to wipe the first drop of blood away when performing a capillary procedure? -
ANSWER To reduce interstitial fluid contamination
, 23. The heel is the recommended site for collection of capillary puncture specimens on infants and the
phlebotomist is going to stick in the posterior curvature of the heel. Is this correct? - ANSWER No the
medial plantar surface of the heel is the best site to prevent possible bone damage
24. Heparinized plasma is preferred over serum for some chemistry tests. Heparin prevents clotting by -
ANSWER inactivating thrombin.
25. Which of the following may cause hematoma formation? - ANSWER Having patient bend elbow to
apply pressure
26. By bracing the hand while holding the needle assembly against the patients arm you - ANSWER
prevent excess needle movement.
27. When performing a capillary blood collection, the first blood drop is wiped away because - ANSWER
the first drop typically has more tissue fluid.
28. Preanalytical errors are mistakes made - ANSWER before laboratory testing
29. What antiseptic should the phlebotomy technician use to collect a blood culture? - ANSWER
Chlorhexidine gluconate
30. The main reason not to use expired evacuated tubes for blood specimen collection is - ANSWER they
may exhibit incomplete filling.
31. Older patients are more prone to hematoma formation because - ANSWER their veins have
decreased elasticity.
32. What abnormal color will be observed in serum collected from a patient with jaundice due to
elevated bilirubin levels? - ANSWER Yellow
33. Which substance has a higher concentration in capillary blood than in venous blood? - ANSWER
Glucose
