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Phlebotomy

Phlebotomy Test Prep

QuestionAnswer
How far above the draw site must the tourniquet be tied? 3-6 inches
What is phlebotomy? The act of drawing or removing blood from the circulatory system through a cut or puncture in order to obtain a sample for analysis and diagnosis.
When is therapeutic phlebotomy used? When a patient has Polycythemia vera, a condition characterized by a high red blood cell count, or hemochromatosis, excessive amounts of iron in the blood, or for patients with pulmonary edema, where it is used to decrease the total blood volume.
What is therapeutic phlebotomy? Extracting large volumes of blood to bring certain values in the blood inline.
Define palpate. To examine (a part of the body) by touch.
What is the purpose of a tourniquet? To slow blood flow through veins or arteries to the extremity for a short period of time.
What is the antecubital fossa? The cavity of the elbow that contains a tendon of the biceps, the median nerve, and the brachial artery.
What are the 3 veins most commonly used for venipuncture procedures? List in order of most commonly used to least commonly used. The Median cubital vein, the Cephalic vein, and the Basilic vein.
What is the maximum amount of time a tourniquet can be left on the arm prior to beginning a venipuncture? 1 minute
Why can the tourniquet not be left on for an extended amount of time prior to the venipuncture? Leaving the tourniquet on for longer than 1 minute prior to beginning the blood draw can cause hemoconcentration which causes falsely elevated results for glucose, potassium, and protein-based analytes.
What is hemoconcentration? Hemoconcentration is a decrease in plasma volume resulting in an increase in the concentration of red blood cells.
Define hemolysis. The rupture or destruction of red blood cells.
List 3 ways hemolysis can occur during a blood draw. Residual alcohol at the skin puncture site, "milking" of the puncture site, excessive and/or aggressive mixing of the specimen in the tube after collection, drawing blood through a hematoma, or using a large volume tube with a small diameter needle.
What is a hematoma? A collection of blood within tissues due to leakage from the wall of a blood vessel.
Why is the order of draw so important? Collecting specimens in the incorrect order of draw can result in cross contamination.
When should a sample be placed on dry ice? No sample should EVER be placed on dry ice.
What should you do if a sharps container is overflowing? Report the violation to your supervisor.
What is an MSDS? An MSDS is a material safety data sheet intended to provide workers & emergency personnel with procedures for handling or working with that substance in a safe manner. It also provides information such as physical data (boiling point, melting point, ect)
What are the 4 types of OSHA compliance inspections? The Complaint Inspection, the Fatality/Accidents Inspection, the Programmed Inspection, and the Imminent Danger Inspection.
Semen must reach the lab in what time frame? Semen samples must reach the lab in less than 30 minutes and as close to body temperature as possible.
What kind of consent is required for an underage/minor patient? Parental consent
What does QNS mean? QNS stands for quantity not sufficient.
All healthcare workers are required to vaccinate or sign a declination form for which virus? Hepatitis B
What is the proper way to identify a patient? Full name and date of birth.
Are phlebotomists allowed to tell patients the results of their tests? No, phlebotomists are not medically qualified to do so.
Define negligence. Failure to give appropriate care.
Define neonate. A human infant during the first month after birth.
What is LIS? An LIS is a laboratory information system. Ususally the LIS is used to order tests, print labels for specimens, and enter test results. LIS can be customized to specific laboratory requirements.
What is ethanol? Another name for alcohol in blood testing. Also refered to as ETOH.
What is the branch of medicine that deals with the diseases, debilities, and care of aged persons? Geriatics
What does C&S stand for? Culture and Sensitivity
Created by: kittychan198
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