CBC Flashcards
reference range for RBC
- males
- females
- 73-5.49 x10^6 uL
4. 15-4.87 x10^6 uL
reference range for hemoglobin
male: 14.40- 16.60 gm/deciliter
female: 12.2-14.7 gm/deciliter
reference range for MCV (mean cellular volume)
78-98
reference range of hematocrit
men: 40-54%
women: 37-47%
reference range of WBC count
4500-11000
4.5-11
reference range for neutrophils
40-76%
reference range for basophils
0-1%
reference range for eosinophils
1-3%
reference range for monocytes
3-7%
reference range for lymphocytes
24-44%
reference range for platelet count
150,000-450,000 uL
reference range of MCH (mean cell hemoglobin
27-31
reference range of MCHC (mean cell hemoglobin concentration)
33-37
reference range of RDW (red cell distribution width)
11.5-14.5
MCV is the average volume or red blood cells
- increase indicates what?
- decrease indicates what?
increased MCV=macrocytosis=vitamin B12 or folic acid defiency
decreased MCV- microcytosis=iron defiency anemia
causes of elevated hemoglobin
loss of plasma volume
high altitude
smokers with COPD
polycythema vera
causes of low hemoglobin
increased destruction of RBCs or decreased production
blood loss
pregnancy due to increase plasma volume
elevation of neutrophils indicates what?
bacterial infections, inflammatory conditions
elevated basophils indicates what?
CML, post-splenectomy, polycytothemia
decreased basophils indicates what?
rheumatic fever, pregnancy, post-radiation therapy, steroid therapy
elevation of eosinophils indicates what?
allergic reactions, parasitic infections, skin disease
elevation of lymphocytes indicates what?
viral infections or lymphocytic leukemia
elevated monocytes indicates what?
phagocytosis of bacterial infections
causes of low WBC counts
viral infection
overwhelming bacterial infection
hypersplenism
bone marrow suppression
causes of low platelets
enlarged spleen
platelet destruction from diseases like DIC and ITP
decreased platelet production–bone marrow suppression, viral infection, vitamin deficiency
alcoholism
causes of elevated platelets
hemorrhage
splenectomy
inflammation
What are the 3 indications for ordering a CBC?
investigate disease of blood or bone marrow
response to inflammation or infection
assess symptoms of fatigue, pallor, weakness, bleeding or bruising, dizziness, fever, weight loss