Phlebotomy NHA,CPT NHA EXAM
2024
What is Hematology? - ANSWER Hematology is the study of blood and its components,
fluids and cells. Also includes the study of blood forming organs and blood disease
What is Phlebotomy? - ANSWER Phlebotomy is the practice of drawing blood for
diagnostic purposes
What does the medical term "Phlebos" mean? - ANSWER Veins
What does the medical term "tome" mean? - ANSWER Incision
What are two other names for capillary puncture? - ANSWER Dermal or skin puncture
What does POCT mean? - ANSWER Point-of-Care
What is Point-of-Care? - ANSWER Tests that can be at the patients bed side and results
can be obtained right away.
Examples: Blood Glucose, Hematocrit, Hemoglobin
What are capillaries? - ANSWER Microscopic, one cell-thick vessels that connect
arterioles and venules
What is the purpose of a capillary? - ANSWER Capillaries are the site of gas exchange
between blood & bodily tissues
What is the preferred locations for venipuncture? - ANSWER 1. Antecubital Fossa
, 2. Upper aspect of the forearm
3. Posterior aspect of the wrist
4. Dorsum (back) of the hand
5. Ankle and foot veins (Dorsalis Pedis)
What does the medical term "ante" mean? - ANSWER Before
What are the three superficial veins located in the Antecubital Fossa? - ANSWER 1.
Median Cubital Vein: Large and fixed
2. Cephalic Vein: Preferred in obese
3. Basilic Vein: Close to the brachial artery and median nerve
What is plasma composed of? - ANSWER 90% water, 7% proteins, the rest is all 1%
(proteins, amino acids, gases, electrolytes, sugars hormones, lipids & vitamins)
What color is plasma? - ANSWER Straw color
What is the difference in appearance of plasma and serum? - ANSWER They both look
the same, the only way to differentiate them is by looking at the tube top color
What is the buffy coat composed of? - ANSWER Leukocytes and platelets
What is the percentage of plasma in the blood by volume? - ANSWER 55%
What is the percentage of formed elements? - ANSWER 45%
What are formed elements? - ANSWER Erythrocytes, Leukocytes, and Platelets
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