Complete Blood Count Flashcards
the complete blood count is also known as what
hemogram
CBC
what four things does the CBC evaluate
plasma protein
RBC
WBC
platelets
one of the most useful clinical evals done on the patient
CBC
what can the results of the CBC reflect
health status
clues on pathologic condition
the volume of packed erythrocytes measures and expressed as a percentage of a total volume of blood
packed cell volume (PCV) or hematocrit (HCT)
what can excess red blood cell breakdown cause
jaudice/icterus
If the amount of unconjugated bilirubin exceeds the ability of the liver to conjugate it, where is excess unconjugated bilirubin deposited - causing jaundice/icterus.
in tissues
what are the three layers in the tube spun by the hematocrit centrifuge
top - plasma
middle - buffy coat
bottom - RBC
in a dog, what are the percentages of the three layers in the tube spun by the hematocrit centrifuge
top plasma - 54%
middle buffy coat - 1%
bottom RBC - 45%
two methods for determining PCV or HCT
automated blood analyzers
gross exam of centrifuged microhematocrit tube
blood analysis that measures the concentration of hemoglobin contained in the RBC in a specific volume of blood
Hemoglobin analysis (Hgb)
blood analysis that measures the number of red blood cells in a specific volume of blood
Red blood cell count (RBC count)
measures the average volume or size of the individual RBC, helpful way to evaluate the erythrocytes in the sample, especially when anemia is present
mean corpuscular volume (MCV)
a numerical expression of variation in RBC size
red cell distribution width (RDW)
variation in size from cell to cell in a blood sample
anisocytosis
what is a sign of anemia is the red cell distribution width (RDW)
marked anisocytosis - RBCs are being pumped out at such a high rate that they don’t have time to fully mature
immature RBCs are what, compared to fully mature RBC already in circulation
larger
a count of the number of immature forms of the red blood cells per a specific total number of red blood cells - used to characterize the type of anemia in an animal
reticulocyte count (RETIC)
expresses the total number of white blood cells in a specific volume of blood, number of each type of WBC is also counted
total leukocyte count (WBC count)
increased number of neutrophils will also increase what
the total number of WBC in the sample
increased number of WBC in the blood
leukocytosis
decreased number of WBC
leukopenia
measures the total number of platelets (thrombocytes) in a specific volume of blood sample
platelet count (PLT)
used to describe a higher than normal or lower than normal platelet count
thrombocytosis
thrombocytopenia
measures the amount of protein in the plasma portion of a specific volume of blood, can be measured by an automated blood analyzer or by using a hand held refractometer
total plasma protein (TP)
manually counting WBC types after a blood smear is stained
differential cell count or diff
stain the contains blue and red-orange dyes
Wright’s stain
modified Wright’s stain that is commonly used in clinical practice to stain a blood smear quickly
Diff Quick
