NWCA Phlebotomy Technician Credential Exam Answered Questions (Latest 2026)

NWCA Phlebotomy Technician Credential
Exam Answered Questions (Latest 2026)
Which of the following veins is most commonly used for
venipuncture? - Correct Answers ✅A. Median Cubital


___________ additive is found in a royal blue-topped blood
collection tube while a yellow-topped blood collection tube
has ____________ additive. - Correct Answers ✅A. Clot
activator; sodium polyanetholesulfonate


The ______ is most appropriate for blood bank collections
while the ______ is most appropriate for the collection of blood
for a DIFF. - Correct Answers ✅D. Pink-topped tube; purple-
topped tube


When using the syringe method to collect a blood specimen,
how is the blood added into additive and non-additive tubes?
- Correct Answers ✅D. Using a syringe transfer device
attached to the syringe, insert each tube into the device and
allow the blood to flow freely.


What is the average skin puncture depth appropriate for an
adult during a blood collection? - Correct Answers ✅B. 2-3
mm


Assays that require a chilled specimen
include:___________________. - Correct Answers ✅D. Gastrin,
ammonia, catecholamine, and lactic acid