NHA Phlebotomy Practice Test
A term used to describe a blood sample in which the red blood cells have
rupturedanswers
Correct is:
Hemolyzed
Which of the following Vacutainer tubes is routinely used for
hematology
Correct testing?
answers
Lavender
No anticoagulants are found in which tube? Correct answers
Plain Red
Which type of tube should be used to collect blood specimens during
a glucose test? Correct answers
tolerance
Gray
What is the anticoagulant that prevents platelets from clumping and
preserves the
appearance of blood cells for microscopic preparation? Correct
answers EDTA( tetraacetic
Ethylenediamine
acid)
What is the name of the slant at the open end of a needle used for
venipuncture?
Correct answers
Bevel
What is the most commonly used needle size for an adult
venipuncture?
answers 21 Correct
guage
What is the most commonly used needle size for an infant and the
elderly? Correct
answers 23
guage
How long should a tourniquet remain tied on a patient's arm? Correct
answers
longer than
No 1
minute
Without a clot activator, whole blood typically clots in how many
minutes?30-60
answers Correct
min.
Thixotropic gel, found in the SST Tiger top tube is characterized as
being: Correct
answers less dense than red blood cells but more dense
than serum
What is the proper order for collection of a blood specimen for
hematology
serum testing,
chemistry testing, and coagulation studies? Correct answers Light
blue, red,
lavende
r
What is the correct tube for a typical hematology test (CBC)? Correct
answers Lavender
A term used to describe a blood sample in which the red blood cells have
rupturedanswers
Correct is:
Hemolyzed
Which of the following Vacutainer tubes is routinely used for
hematology
Correct testing?
answers
Lavender
No anticoagulants are found in which tube? Correct answers
Plain Red
Which type of tube should be used to collect blood specimens during
a glucose test? Correct answers
tolerance
Gray
What is the anticoagulant that prevents platelets from clumping and
preserves the
appearance of blood cells for microscopic preparation? Correct
answers EDTA( tetraacetic
Ethylenediamine
acid)
What is the name of the slant at the open end of a needle used for
venipuncture?
Correct answers
Bevel
What is the most commonly used needle size for an adult
venipuncture?
answers 21 Correct
guage
What is the most commonly used needle size for an infant and the
elderly? Correct
answers 23
guage
How long should a tourniquet remain tied on a patient's arm? Correct
answers
longer than
No 1
minute
Without a clot activator, whole blood typically clots in how many
minutes?30-60
answers Correct
min.
Thixotropic gel, found in the SST Tiger top tube is characterized as
being: Correct
answers less dense than red blood cells but more dense
than serum
What is the proper order for collection of a blood specimen for
hematology
serum testing,
chemistry testing, and coagulation studies? Correct answers Light
blue, red,
lavende
r
What is the correct tube for a typical hematology test (CBC)? Correct
answers Lavender
