Phlebotomy Medca Exam | Questions with 100 % correct answers | Verified

Color coding of needles indicates - Guage What does a blood cell count require - Whole blood collected in a purple top tube The preferred anticoagulant for the collection of whole blood for STAT situations in a clinical laboratory - Herapin main cells of the immune system - White blood cells Plasma makes up what percent of the blood tissue - 55% Normal pulse rate of a 9 year old - 75-110 BPM When is a diastolic heart sound heard - when the heart relaxes What are the formation of blood cells that start in the bone marrow - Stem cells True or False White blood cells contain chromosomes - True What are developing red blood cells also called - Reticulocytes How many red blood cells are produced per second - About 2 million Amount of time it takes for red blood cells to mature - 7 days