MEDCA exam study guide Phlebotomy Exam Questions And Answers Verified 100% Correct

MEDCA exam study guide Phlebotomy Exam Questions And Answers Verified 100% Correct What are skin puncture samples often used for? - answer White blood cell differentials. During a skin puncture procedure, the cut should be across the - 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? - answer Obstructed. The thumb has a.. - answer Pulse What is the last step in any phlebotomy procedure, including skin puncture? - correct answer Checking that the bleeding has stopped and thanking the patient for cooperating. What is the best way to decontaminate a phlebotomists hands if they are visibly dirty with dust and dirt? - answer Wash them with soap and water. How long should the alcohol be allowed to dry before venipuncture? - answer 30 to 60 seconds During a venipuncture what is the best angle for inserting the needle into the skin? - answer 15 to 30 degrees During a venipuncture, when does the phlebotomist release the tourniquet? - correct answer After the needle is inserted and the blood starts to flow. The term "butterfly" refers to a... - answer Winged infusion set During a venipuncture procedure the needle should always be inserted with the... - answer Bevel side up Why should blood and urine specimens for microbiological culture be transported to the lab quickly? - answer To improve the likelihood of detecting pathogens. How long do normal blood specimens take to clot? - answer 30 to 60 minutes Bar codes in phlebotomy applications are not used to denote..... - answer Patient arm preference The preferred anticoagulant for the collection of whole blood in STAT situations in clinical chemistry is... - answer Heparin A 16 gauge needle is larger than a 24 gauge needle because.. - answer The smallest number denotes the largest gauge needle. A blood cell counts requires whole blood collected in a... - answer Purple-topped tube. Color coding of needles indicates.. - answer Gauge The yellow-topped collection tube has what as an additive? - answer Polyanetholesufonate (SPS) For newborns, the penetration depth of lancets for blood collection must be less than.. - answer 2.0mm If a blood specimen has a separation device it should be.. - answer Centrifuged once What should the health care worker use to chill a blood specimen as it is being transported? - answer Icy water When blood is removed from the body, the blood clots and the liquid part is called - answer Serum If veins in the arms cannot be used for venipuncture, the alternative veins can be found in the - answer Dorsal side of hands and wrists The instrument used to speed the removal of serum by spinning the blood is called a - 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 - answer Safety concious gesture for both the worker and the patient. Lying face up on their back is called what position? - answer Supine position To avoid blood-clotting in the collection tube, it is extremely important the blood in the.. - answer Purple-topped tube be gently inverted a minimum of eight times. What is the normal ph range of a normal body? - answer 7.35 to 7.45 Serum should be transported to the laboratory for testing and separated from blood cells within what time limit? - answer Within 2 hours Of the total volume of blood, how much percent is liquid - answer 55% is liquid A person who has too little hemoglobin or a decreased number of red blood cells is known to be - answer Anemic Where do blood cells begin their formation? - answer In the lymph nodes and bone marrow. If the phlebotomist collects blood in the neonatalogy department, how old is the patient? - answer Hours to a few days old. The iron containing pigment of the red blood cells is called - answer Hemoglobin How long do mature red blood cells live once they have entered the blood stream? - answer Approximately 120 days Approximately how many liters of blood does the body contain? - answer Approximately 5 liters of blood The study of the nature and cause of disease is called - answer Pathology A specifically labeled puncture-resistant container for the disposal of needles, scalpels and syringes is known as the. . - answer Sharps container When drawing blood, which vein is most preferred? - answer The median cubital If blood pressure is read 120/80, which is the systolic pressure? - answer 120 What is systolic pressure? - answer The pressure when the heart is contracted. A chemical substance that prevents the heart from clogging is called an... - correct answer Anticoagulant