NHA Phlebotomy Practice Test Questions and Answers with Verified Solutions

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NHA Phlebotomy Practice Test Questions and Answers with Verified Solutions A term used to describe a blood sample in which the red blood cells have ruptured is: ✔✔Hemolyzed Which of the follo... wing Vacutainer tubes is routinely used for hematology testing? ✔✔Lavender No anticoagulants are found in which tube? ✔✔Plain Red Which type of tube should be used to collect blood specimens during a glucose tolerance test? ✔✔Gray What is the anticoagulant that prevents platelets from clumping and preserves the appearance of blood cells for microscopic preparation? ✔✔EDTA( Ethylenediamine tetraacetic acid) What is the name of the slant at the open end of a needle used for venipuncture? ✔✔Bevel What is the most commonly used needle size for an adult venipuncture? ✔✔21 guage What is the most commonly used needle size for an infant and the elderly? ✔✔23 guage How long should a tourniquet remain tied on a patient's arm? ✔✔No longer than 1 minute Without a clot activator, whole blood typically clots in how many minutes? ✔✔30-60 min. Thixotropic gel, found in the SST Tiger top tube is characterized as being: ✔✔less 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? ✔✔Light blue, red, lavender What is the correct tube for a typical hematology test (CBC)? ✔✔Lavender What happens when you leave a tourniquet tied on a patient's arm for longer than the recommended time? ✔✔Hemoconcentration What is the site cleaned with before performing a venipuncture or capillary puncture? ✔✔Isopropyl Alcohol What angle do you position the needle to perform a routine venipuncture? ✔✔15 degrees When is the correct time to remove the tourniquet during a venipuncture? ✔✔As the last tube to be drawn begins to fill What is a winged infusion set also known by? ✔✔Butterfly What is a hematoma caused by? ✔✔Excessive probing to locate a vein, failure to insert the needle far enough into the vein, penetration of the needle through a vein. What is the most common phlebotomy site in adults? ✔✔veins in the antecubital space What is the clear part of whole blood that contains clotting agents? ✔✔Plasma What tube is used for a coagulation test? ✔✔Light blue Oder of Draw ✔✔Sterile Light Blue Red/Tiger Green Lavender Gray [Show More]

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