NWCA STATE TEST Exam Questions
and Answers Graded A+
Which of the following veins is most commonly used for venipuncture? - Correct
answer-median cubital
________additive is found in a royal blue-topped blood collection tube wormhole
a yellow-topped blood collection tube has _______additive - Correct answer-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 answer-Pink-
topped tube; purple-topped tube
When using the syringe method to collect a blood specimen, how is the blood
added into additive and nonadditive tubes? - Correct answer-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 procedure? - Correct answer-2-3mm
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Assays that require a chilled specimen include: - Correct answer-gastrin, ammonia,
catecholamine, and lactic acid
"CSF" is a specimen originating from - Correct answer-The spinal column
What is commonly used intravenous device that is sometimes used in the
collection of blood from patients who are difficult to collect blood by conventional
methods? - Correct answer-Butterfly needle or winged infusion set
The color coding for needles indicates the - Correct answer-gauge size
Which anticoagulant is found in a green top tube blood collection tube? - Correct
answer-Sodium heparin
What is an anticoagulant used in blood donations - Correct answer-Sodium citrate
Approximately how many minutes does it take for a specimen without additives to
clot ? - Correct answer-30
Yellow top tubes are used to collect blood for - Correct answer-Blood cultures
After the needle is inserted for a venipuncture and the blood begins to squirt out in
pulses, this might indicate that - Correct answer-an artery has been penetrated by
the needle
If a patients is obese, what special equipment if any would be helpful in the
specimen collection process ? - Correct answer-A large blood pressure cuff
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
and Answers Graded A+
Which of the following veins is most commonly used for venipuncture? - Correct
answer-median cubital
________additive is found in a royal blue-topped blood collection tube wormhole
a yellow-topped blood collection tube has _______additive - Correct answer-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 answer-Pink-
topped tube; purple-topped tube
When using the syringe method to collect a blood specimen, how is the blood
added into additive and nonadditive tubes? - Correct answer-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 procedure? - Correct answer-2-3mm
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Assays that require a chilled specimen include: - Correct answer-gastrin, ammonia,
catecholamine, and lactic acid
"CSF" is a specimen originating from - Correct answer-The spinal column
What is commonly used intravenous device that is sometimes used in the
collection of blood from patients who are difficult to collect blood by conventional
methods? - Correct answer-Butterfly needle or winged infusion set
The color coding for needles indicates the - Correct answer-gauge size
Which anticoagulant is found in a green top tube blood collection tube? - Correct
answer-Sodium heparin
What is an anticoagulant used in blood donations - Correct answer-Sodium citrate
Approximately how many minutes does it take for a specimen without additives to
clot ? - Correct answer-30
Yellow top tubes are used to collect blood for - Correct answer-Blood cultures
After the needle is inserted for a venipuncture and the blood begins to squirt out in
pulses, this might indicate that - Correct answer-an artery has been penetrated by
the needle
If a patients is obese, what special equipment if any would be helpful in the
specimen collection process ? - Correct answer-A large blood pressure cuff
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
