NHA Phlebotomy Practice Test..docx

A term used to describe a blood sample in which the red blood cells have ruptured is: - correct answer Hemolyzed Which of the following Vacutainer tubes is routinely used for hematology testing? - correct answer Lavender No anticoagulants are found in which tube? - correct answer Plain Red Which type of tube should be used to collect blood specimens during a glucose tolerance test? - correct answer Gray What is the anticoagulant that prevents platelets from clumping and preserves the appearance of blood cells for microscopic preparation? - correct answer EDTA( Ethylenediamine tetraacetic acid) What is the name of the slant at the open end of a needle used for venipuncture? - correct answer Bevel What is the most commonly used needle size for an adult venipuncture? - correct answer 21 guage What is the most commonly used needle size for an infant and the elderly? - correct answer 23 guage How long