Ohio School of Phlebotomy CH. 3 & 4/ Q&A
2024-2025.
CBC - Answer: complete blood count
Why is order of draw important? - Answer: To prevent contaminating later tubes
with the additive from previous tubes.
Evacuated tubes - Answer: Tubes with air removed to produce a vacuum
Anticoagulant - Answer: prevents blood clotting
Fibrin - Answer: protein that forms the basis of a blood clot
PTT - Answer: partial thromboplastin time; patients’ ability to perform blood clots
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, PT - Answer: prothrombin time test; diagnosing clotting diseases; monitors drug
therapies (Coumadin/Warfarin)
HbA1c - Answer: hemoglobin A1c; glycated hemoglobin; glycohemoglobin;
average glucose level within 120 days
Serum Chemistries - Answer: Chem 7; Basic metabolic panel (BMP)
Erythrocytes - Answer: red blood cells
Plasma - Answer: Water like portion of your blood that carries many vital
components including glucose, fats, metabolic waste, and antibodies; contains
fibrin; light yellow fluid; 90% water, 10% solutes; STAT testing
serum - Answer: Plasma with the fibrin removed; 30 minute clot time; darker
yellow in color
Hemopoiesis - Answer: producer of blood cells (marrow)
Leukocytes - Answer: white blood cells
Reticulocyte - Answer: immature erythrocyte
Neutrophils - Answer: Phagocyte; 1st responders to bacterial infections
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2024-2025.
CBC - Answer: complete blood count
Why is order of draw important? - Answer: To prevent contaminating later tubes
with the additive from previous tubes.
Evacuated tubes - Answer: Tubes with air removed to produce a vacuum
Anticoagulant - Answer: prevents blood clotting
Fibrin - Answer: protein that forms the basis of a blood clot
PTT - Answer: partial thromboplastin time; patients’ ability to perform blood clots
Page 1 of 7
, PT - Answer: prothrombin time test; diagnosing clotting diseases; monitors drug
therapies (Coumadin/Warfarin)
HbA1c - Answer: hemoglobin A1c; glycated hemoglobin; glycohemoglobin;
average glucose level within 120 days
Serum Chemistries - Answer: Chem 7; Basic metabolic panel (BMP)
Erythrocytes - Answer: red blood cells
Plasma - Answer: Water like portion of your blood that carries many vital
components including glucose, fats, metabolic waste, and antibodies; contains
fibrin; light yellow fluid; 90% water, 10% solutes; STAT testing
serum - Answer: Plasma with the fibrin removed; 30 minute clot time; darker
yellow in color
Hemopoiesis - Answer: producer of blood cells (marrow)
Leukocytes - Answer: white blood cells
Reticulocyte - Answer: immature erythrocyte
Neutrophils - Answer: Phagocyte; 1st responders to bacterial infections
Page 2 of 7
