Blood System - Chapter 13 - Laboratory Tests
Terms
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- antiglobulin test (Coombs test)
- test for the presence of antibodies that coat and damage erythrocytes
- bleeding time
- time required for blood to stop flowing from a tiny puncture wound
- coagulation time
- time required for venous blood to clot in a test tube
- erythrocyte sedimentation rate (ESR or sed rate)
- speed at which erythrocytes settle out of plasma
- complete blood count (CBC)
- determination of the number of red and white blood cells, platelets, hemoglboin, hematocrit, and red cells indices - MCH, MCV, MCHC
- hematocrit (Hct)
- percentage of erythrocytes in a volume of blood
- hemoglobin test (H, Hg, HGB)
- total amount of hemoglobin in a sample of peripheral blood
- partial thromboplastin time (PTT)
- measures the presence of plasma factors that act in a portion of the coagulation pathway
- prothrombin time (PT)
- test of the ability of blood to clot
- red blood cell count (RBC)
- number of erythrocytes per cubic millimeter or microliter of blood
- red blood cell morphology
- microscopic examination of a stained blood smear to detemrine the shape of indivudal red cells
- white blood cell count (WBC)
- number of keukocytes per cubic millimeter or microliter
- white blood cell differential
- detemrines the % of the total WBC made up by different types of leukocytes
- apheresis
- separation fo blood into component parts and removal of a select part from the blood
- blood transfusion
- whole blood or cells are taken from a donor and infused into a patient
- bone marrow biopsy
- microscopic examination of a core of bone marrow removed with a needle
- hematopoietic stem cell transplant
- peripheral stem cells froma compatible donor are administered into a recipient's vein