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Hematology Testing

Lab tests

QuestionAnswer
Hematocrit abbreviation Hct
Hemoglobin abbreviation Hgb
Hematocrit recorded value % (percent)
Hemoglobin recorded value g/dL
Hematocrit to Hemoglobin comparison Hct is approximately 3 times greater than Hgb or Hgb is approximately 1/3 of Hct. (Eg. Hct of 33% = Hgb of 11 g/dL)
Hematocrit definition The percentage of red blood cells in a sample
Buffy coat The thin light colored line above the red blood cells after a blood sample has been centrifuged in a capillary tube
What diagnostic term may be used if the hematocrit and hemoglobin are below normal range? Anemia
What diagnostic term may be used if the Hct and Hgb are above the normal limits? Polycythemia vera
ESR is the abbreviation for... erythrocyte sedimentation rate
Hct normal ranges Adult Female: 36-45% Adult Male: 42-52% Neonates: 44-64% Infants: 37-41% Children: 35-41% (Values may vary slightly from different reference range resources)
Hgb normal ranges Adult Female: 12-16 g/dL Adult Male: 14-18 g/dL Neonates: 17-23 g/dL Infants: 9-14 g/dL Children 10-15 g/dL (Values may vary slightly from different reference range resources)
RBC normal ranges Adult Female: 4-5.5 million/mm Adult Male: 4.5-6 million/mm Neonates: 4.8-7.1 million/mm Infants: 3.8-5.5 million/mm Children 4.5-4.8 million/mm (Values may vary slightly from different reference range resources)
WBC normal ranges Adult Female: 4000-11000/mm Adult Male: 4000-11000/mm Neonates: 9000-30000/mm Infants: 6000-16000/mm Children 5000-13000/mm (Values may vary slightly from different reference range resources)
Five different white blood cell in order of highest to lowest number in healthy individual Neutrophil segmented (50-65%), Neutrophil bands (0-7%), Lymphocyte (25-40%), Monocyte (3-9%), Eosinophil 1-3%), Basophil (0-1%)
Red cell indices normal values MCH 82-99 fl MCH 26-34 pg MCHC 31-37 g/dL
Sed Rate (ESR) normal values (Westergren) Female under age 50:0-20 mm/hr Male under age 50: 0-15 mm/hr Female over age 50: 0-30 mm/hr Male over age 50: 0-20 mm/hr
Erythryocyte sedimentation rate tests for....... Inflamation (May be due to any cause of inflammation such as infection, rheumatoid arthritis, tuberculosis, hepatitis, cancer, multiple myeloma, rheumatic fever, lupus erythematosis)
The ESR is allowed to sit undisturbed to allow the cells to fall out of the plasma for exactly what period of time?q One hour
Another term for thrombocyte Platelet
Granulocytes (granular appearance of cytoplasm) NeutroPHIL, eosinoPHIL, basoPHIL
Agranulocytes (clear appearance of cytoplasm) MonoCYTE, LymphoCYTE
Created by: cskinner
 

 



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