EXAM QUESTIONS AND ANSWERS WELL
ILLUSTRATED.
1. An individual who has little resistance to an infectious microbe is referred
to as a susceptible what? ANS >>> Host
2. Which of the following is an example of a work practice control that reduces
risk of exposure to bloodborne pathogens? ANS >>> Wearing gloves to draw
blood
3. This ion is essential to the coagulation process. ANS >>> Calcium
4. QC protocols prohibit use of outdated evacuated tubes because why? ANS
>>> -
Tubes my not fill completely, changing additive-to-sample ratios.
5. Molecular genetic testing requires what? ANS >>> Specimens to be collected
in sterile EDTA.
6. What is the purpose of an antiglycolytic agent? ANS >>> Preserve glucose
7. Which on of the following tubes is filled first when multiple tubes are filled
https://www.stuvia.com/user/CULTIVATED 1/9
, using an evacuated tube system? ANS >>> Blood culture (SPS) tube
8. What is the recommended disinfectant for blood culture sites in infants 2
months and older? ANS >>> Chlorhexidine gluconate
9. Latent fibrin formation in serum can result from what? ANS >>> Incomplete
clotting when centrifuged
10. In which of the following areas does capillary specimen collection differ
from routine venipuncture when collecting a BUN and CBC? ANS >>> Order
of draw
11. This is an example of a preanalytical error made at the time of collection.-
ANS >>> Failing to mix tubes
12. What constitutes a positive modified Allen test? ANS >>> The hand color
returns to normal in 15 seconds.
13. According to CLSI, which tubes should be placed upright as soon as they
are mixed? ANS >>> Nonanticoagulant gel tubes
14. Reference values are higher for capillary specimens with what test? ANS
>>> Glu- cose
15. According to CLSI, the maximum time limit for separating serum or plasma
from cells is how long? ANS >>> 2.0 hours from time of collection
16. All of the following are a reason for transporting tubes with the stoppers
up EXCEPT which of the following? ANS >>> Maintains the sterility of the
sample.
17. The liquid portion of a clotted specimen is called what? ANS >>> Serum
18. The most common reason for glucose monitoring through POCT is to
what? ANS >>> Monitor glucose levels for diabetic care.
19. The AMT, ACA, and ASCP are agencies that do what? ANS >>> Certify
https://www.stuvia.com/user/CULTIVATED 2/9