Diagnostic Tests and Procedures Flashcards
blood chemistry
test of the fluid portion of blood to measure the amounts of its chemical constituents
blood chemistry panels
specialized batteries of automated blood chemistry tests performed on a single sample of blood
basic metabolic panel (BMP)
battery of tests used as a general screen for diases
comprehensive metabolic panel (CMP)
tests performed in addition to the basic panel for expanded screening
blood culture
test to determine if infection is present in the bloodstream by isolating a specimen of blood in an environment that encourages growth of microorganisms
CD4 cell count
a measure of the number of cluster of differentiation (CD4) cells in the blood used in monitoring HIV and treatment of AIDS
erythrocyte sedimentation rate (ESR)
timed test that measure the rate at which RBCs settle through a volume of plasma
partial thromboplastin time (PTT)
test to determine coagulation defects
thromboplastin
substance present in tissues, platelets, and leukocytes that is necessary for coagulation
prothrombin time (PT)
test to measure activity of prothrombin in the blood
prothrombin
protein substance in the blood that is essential to the. clotting process
complete blood count (CBC)
blood test performed as a screen of general health
white blood count (WBC)
a count of the number of WBC in a given volume of blood
red blood count (RBC)
a count of the number of RBC in a given volume of blood
hemoglobin (HGB or Hgb)
a test to determine the blood level of Hgb expressed in grams
hematocrit (HCT or Hct)
a measurement of the percentage of packed RBC in a given volume of blood
blood indices
calculations of RBC, HGB, and HCT results to determine the average size, hemoglobin concentration, and content of RBC to classify an anemia
mean corpuscular (cell) volume (MCV)
calculation of the volume of individual RBCs using HCT and RBC results
MCV = HCT/RBC
mean corpuscular (cell) hemoglobin (MCH)
calculation of the content of Hgb in the average RBCs using HGB and RBC results
MCH=HGB/RBC
mean corpuscular (cell) hemoglobin concentration (MCHC)
calculation of the average Hgb concentration in each RBCs using HGB and HCT results
MCHC = HGB/HCT
differential count
determination of the number of each type of WBCs in a stand blood smear
red cell morphology
as part of identifying and counting the WBCs the condition, size and shape of RBCs in the background of the smeared slide are noted
platelet count (PLT)
calculation of the number of thrombocytes in the blood
bone marrow aspiration
needle aspiration of bone marrow tissue for pathologic examination
