LATEST MEDCA exam study guide Phlebotomy 2023/2024

When blood is removed from the body, the blood clots and the liquid part is called - correct answer Serum If veins in the arms cannot be used for venipuncture, the alternative veins can be found in the - correct answer Dorsal side of hands and wrists The instrument used to speed the removal of serum by spinning the blood is called a - correct answer Centrifuge Before performing a venipuncture, a clean pair of gloves should be put on the presence of the patient because it is a reassuring - correct answer Safety concious gesture for both the worker and the patient. Lying face up on their back is called what position? - correct answer Supine position To avoid blood-clotting in the collection tube, it is extremely important the blood in the.. - correct answer Purple-topped tube be gently inverted a minimum of eight times. What is the normal ph range of a normal body? - correct answer 7.35 to 7.45 Serum should be transported to the laboratory for testing and separated from blood cells within what time limit? - correct answer Within 2 hours Of the total volume of blood, how much percent is liquid - correct answer 55% is liquid A person who has too little hemoglobin or a decreased number of red blood cells is known to be - correct answer Anemic Where do blood cells begin their formation? - correct answer In the lymph nodes and bone marrow. If the phlebotomist collects blood in the neonatalogy department, how old is the patient? - correct answer Hours to a few days old. The iron containing pigment of the red blood cells is called - correct answer Hemoglobin How long do mature red blood cells live once they have entered the blood stream? - correct answer Approximately 120 days Approximately how many liters of blood does the body contain? - correct answer Approximately 5 liters of blood The study of the nature and cause of disease is called - correct answer Pathology A specifically labeled puncture-resistant container for the disposal of needles, scalpels and syringes is known as the. . - correct answer Sharps container When drawing blood, which vein is most preferred? - correct answer The median cubital If blood pressure is read 120/80, which is the systolic pressure? - correct answer 120 What is systolic pressure? - correct answer The pressure when the heart is contracted. A chemical substance that prevents the heart from clogging is called an... - correct answer Anticoagulant Steady-state condition is referred to as - correct answer Homeostasis What cannot be converted into bar code symbols? - correct answer Handwritten information What is interstitial fluid? - correct answer Tissue fluid Fragile veins are most likely to be found in what kind of patient? - correct answer Geriatric patients After a finger stick is performed what should the phlebotomist do first. - correct answer Wipe away the first drop of blood with a gauze. What is the best angle for spreading a blood smear using two slides? - correct answer A 30 degree angle. What are skin puncture samples often used for? - correct answer White blood cell differentials. During a skin puncture procedure, the cut should be across the - correct answer Fingerprint lines. In most cases, when should blood be drawn to determine medication levels? - correct answer Prior to the next dose of medication given. In relation to veins, what does the term occluded mean? - correct answer Obstructed. The thumb has a.. - correct answer Pulse