Ch 6 Diagnostic procedures Flashcards
blood culture and sensitivity (C&S)
sample of blood is incubated in the lab to check for bacterial growth. if bacteria are present, they are identified and tested to determine which antibiotics they are sensitive to
complete blood count (CBC)
combination of blood tests including RBC, WBC, hemoglobin (Hgb), hematocrit (Hct), WBC differential, and platelet count
erythrocyte sedimentation rate
blood test to determine the rate at which mature RBC settle out of the blood after the addition of an anticoagulant. this is an indicator of the presence of an inflammatory disease
hematocrit
blood test to measure the volume of RBC within the total volume of blood
hemoglobin
a blood test to measure the amount of hemoglobin present in a given volume of blood
platelet count
blood test to determine the number of platelets in a given volume of blood
prothrombin time
a measure of the blood’s coagulation abilities by measuring how long it takes for a clot to form after prothrombin has been activated
RBC
blood test to determine the number of RBC in a volume of blood. a decrease in RBC may indicate anemia; an increase may indicate polycythemia
RBC morphology
morph/o=shape
examination of a specimen of blood for abnormalities in the shape of the RBC. used to determine diseases like sickle cell anemia
sequential multiple analyzer computer (SMAC)
Machine for doing multiple blood chemistry tests automatically
WBC
blood test to measure the number of leukocytes in a volume of blood. an increase may indicate the presence of infection or a disease such as leukemia. a decrease in WBC may be caused by radiation therapy or chemotherapy
WBC differential
blood test to determine the number of each variety of leukocytes
bone marrow aspiration
sample of bone marrow is removed by aspiration with a needle and examined for diseases such as leukemia or aplastic anemia
phlebotomy
phleb/o= vein
incision into a vein in order to remove blood for a diagnostic test. aka venipuncture
