Common Lab Values
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Reference ranges for the tests you will actually see, with what a high result means and what a low result means for each one. Covers the complete blood count, metabolic panels, coagulation, blood gases, thyroid, iron studies and drug levels.
- Sodium
- 135-145
- Potassium
- 3.5-5.0
- Chloride
- 98-106
- Bicarbonate, serum CO2
- 22-28
- Blood urea nitrogen
- 7-20
- Creatinine
- 0.6-1.2 in men, 0.5-1.1 in women
- Fasting blood glucose
- 70-99
- Total calcium
- 8.5-10.5
- Ionized calcium
- 4.5-5.6
- Magnesium
- 1.5-2.5
- Phosphate
- 2.5-4.5
- Anion gap
- 8-12
- Serum osmolality
- 275-295
- White blood cell count
- 4,500-11,000
- Absolute neutrophil count
- Above 1,500
- Hemoglobin
- 13.5-17.5 in men, 12.0-15.5 in women
- Hematocrit
- 41-53 percent in men, 36-46 percent in women
- Red blood cell count
- 4.7-6.1 million in men, 4.2-5.4 million in women
- Platelet count
- 150,000-450,000
- Mean corpuscular volume
- 80-100
- Mean corpuscular hemoglobin
- 27-33
- Red cell distribution width
- 11.5-14.5
- Reticulocyte count
- 0.5-2.5
- Neutrophils, percentage of white cells
- 55-70
- Lymphocytes, percentage of white cells
- 20-40
- Monocytes, percentage of white cells
- 2-8
- Eosinophils, percentage of white cells
- 1-4
- Basophils, percentage of white cells
- 0.5-1
- Albumin
- 3.5-5.0
- Total protein
- 6.0-8.0