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31 Cards in this Set

  • Front
  • Back
Most frequently ordered lab test
CBC
Normal range of Hgb for males?
14 - 17.5 g/dL
Normal range of Hgb for females?
12.3 - 15.3 g/dL
Normal range of Hct in females?
36-45%
Normal range of Hct in Males?
42-50%
Percentage volume of blood that is composed of erythrocytes

Usually ~ 3x the value of Hgb
Hematocrit
Normal range of RBC for men?
4.5 – 5.9 x 10^6 cells/µL

4,500,000 - 5,900,000
Normal range of RBC for women?
4.1 – 5.1 x 10^6 cells/µL

4,100,000 - 5,100,000
Normal range for reticulocytes (retics) ?

Useful in identifying drug induced bone marrow suppression or to monitor anemic patient’s response to iron or vitamin therapy.
0.50 - 2.5%
Average lifespan of a RBC?
120 days
estimate of average volume of RBCs (size of RBC)
MCV = Mean Corpuscular Volume
Normal range for MCV?
80-96 fL/cell
abnormally large cells (increased MCV)

B12 and folate deficiencies, liver disease, chemotherapy
Macrocytic
abnormally small cells (decreased MCV)

Iron deficiency, thalassemias, lead poisoning
Microcytic
Amount of hemoglobin (weight) per RBC
MCH = Mean Corpuscular Hemoglobin
Normal range for Mean Corpuscular Hemoglobin?
27.5 - 33.2 pg/Cell
Normal range for Mean Corpuscular Hemoglobin Concentration (MCHC)

Hypochromic – deficiency of Hgb causing RBC to appear pale
33.4 - 35.5 g/dL
Normal range is 11.5 - 14.5%
Red Cell Distribution Width
RDW
Indicates a varation in cell size
Red Cell Distribution Width
RDW
Measures the average concentration or percentage of Hgb w/in a single RBC (color)
MCHC
Normal range for WBC
4,400 - 11,300 cells/mm^3
Abnormally high numbers of WBC

Associated with: acute infection, inflammation, tissue necrosis
Leukocytosis
Abnormally low number of WBC

Associated with: Bone marrow failure, chemo/radiation, overwhelming infections
Leukopenia
Parasitic infection
Allergic rxn/ Any drug rxn (sulfonamides, ACE inhibitors, CML)
Pulmonary Eosinophilia
Hodkin Lymphoma

Abnormally high number of eosinophils
Eosinophilia
Radiation
Leukemia
Chemotherapy
Overwhelming bacterial infection (septicemia w/ gram negative bacteria)
Vitamin B12 or Folate Deficiency
Viral infection (CMV, EBV, Hepatitis, MMR, HIV)
Neutropenia
__________ causes:
Newborn
Pregnancy
N/V
Strenuous exercise
Extreme Temp/ UV light
Neutrophilia
(Physiological causes)
__________ causes:
Acute/Chronic bacterial infection
Trauma
Myocardial Infarction
Epinephrine, Lithium, Corticosteroids, *Cigarette Smoking*
Neutrophilia
(Pathological causes)
Normal range for Platelets (Thrombocytes)?

produced in bone marrow
Platelets (Thrombocytes)Normal range is 150,000 – 440,000/µL
Total number of all blood cells is reduced

(Seen in Aplastic Anemia)
Pancytopenia
Infectious mononucleosis, viral infections (rubella, varicella, mumps, CMV), pertussis, TB syphilis, lymphoma, toxoplasmosis

Most commonly elevated with viral infection
Lymphocytosis
HIV, radiation exposure, corticosteroids, Lymphoma (Hodgkin’s), aplastic anemia
Lymphopenia