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NHA Phlebotomy Practice Test 100% verified
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NHA Phlebotomy Practice Test 100% verified
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NHA Phlebotomy Practice TestA term used to describe a blood sample in which the red blood cells have ruptured is: -
ANSHemolyzed
Which of the following Vacutainer tubes is routinely used for hematology testing? -
ANSLavender
No anticoagulants are found in which tube? - ANSPlain Red
Which type of tube should be used to collect blood specimens during a glucose tolerance test? -
ANSGray
What is the anticoagulant that prevents platelets from clumping and preserves the appearance
of blood cells for microscopic preparation? - ANSEDTA( Ethylenediamine tetraacetic acid)
What is the name of the slant at the open end of a needle used for venipuncture? - ANSBevel
What is the most commonly used needle size for an adult venipuncture? - ANS21 guage
What is the most commonly used needle size for an infant and the elderly? - ANS23 guage
How long should a tourniquet remain tied on a patient's arm? - ANSNo longer than 1 minute
Without a clot activator, whole blood typically clots in how many minutes? - ANS30-60 min.
Thixotropic gel, found in the SST Tiger top tube is characterized as being: - ANSless dense than
red blood cells but more dense than serum
What is the proper order for collection of a blood specimen for hematology testing, serum
chemistry testing, and coagulation studies? - ANSLight blue, red, lavender
What is the correct tube for a typical hematology test (CBC)? - ANSLavender
What happens when you leave a tourniquet tied on a patient's arm for longer than the
recommended time? - ANSHemoconcentration
What is the site cleaned with before performing a venipuncture or capillary puncture? -
ANSIsopropyl Alcohol
What angle do you position the needle to perform a routine venipuncture? - ANS15 degrees
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