Published: 18 Oct 2024

Reference Ranges for Common Laboratory Tests

Complete Blood Count (CBC)

| Test | Reference Range |
|---|---|
| White Blood Cells (WBC) | 4,500 - 11,000 cells/mcL |
| Red Blood Cells (RBC) | |
| - Men | 4.7 - 6.1 million cells/mcL |
| - Women | 4.2 - 5.4 million cells/mcL |
| Hemoglobin | |
| - Men | 13.8 - 17.2 g/dL |
| - Women | 12.1 - 15.1 g/dL |
| Hematocrit | |
| - Men | 40.7 - 50.3% |
| - Women | 36.1 - 44.3% |
| Platelets | 150,000 - 450,000 platelets/mcL |

Basic Metabolic Panel (BMP)

| Test | Reference Range |
|---|---|
| Glucose (fasting) | 70 - 99 mg/dL |
| Calcium | 8.5 - 10.2 mg/dL |
| Sodium | 135 - 145 mEq/L |
| Potassium | 3.5 - 5.0 mEq/L |
| Chloride | 98 - 107 mEq/L |
| Bicarbonate (CO2) | 23 - 30 mEq/L |
| Blood Urea Nitrogen (BUN) | 7 - 20 mg/dL |
| Creatinine | |
| - Men | 0.74 - 1.35 mg/dL |
| - Women | 0.59 - 1.04 mg/dL |

Comprehensive Metabolic Panel (CMP)

Includes all BMP tests plus:

| Test | Reference Range |
|---|---|
| Total Protein | 6.0 - 8.3 g/dL |
| Albumin | 3.5 - 5.0 g/dL |
| Globulin | 2.0 - 3.5 g/dL |
| Bilirubin | 0.1 - 1.2 mg/dL |
| Alkaline Phosphatase | 44 - 147 IU/L |
| Aspartate Aminotransferase (AST) | 10 - 40 IU/L |
| Alanine Aminotransferase (ALT) | 7 - 56 IU/L |

Lipid Panel

| Test | Reference Range |
|---|---|
| Total Cholesterol | <200 mg/dL (desirable) |
| Low-Density Lipoprotein (LDL) | <100 mg/dL (optimal) |
| High-Density Lipoprotein (HDL) | |
| - Men | <40 mg/dL (low), >60 mg/dL (high) |
| - Women | <50 mg/dL (low), >60 mg/dL (high) |
| Triglycerides | <150 mg/dL (normal) |

Thyroid Function Tests

| Test | Reference Range |
|---|---|
| Thyroid Stimulating Hormone (TSH) | 0.4 - 4.0 mIU/L |
| Free T4 | 0.8 - 1.8 ng/dL |
| Free T3 | 2.3 - 4.2 pg/mL |

Urinalysis

| Test | Reference Range |
|---|---|
| pH | 4.5 - 8.0 |
| Specific Gravity | 1.005 - 1.030 |
| Protein | <20 mg/dL |
| Glucose | Negative |
| Ketones | Negative |
| Blood | Negative |

Important Notes

* Reference ranges may vary based on factors such as age, sex, and laboratory methods.
* Always consult with a healthcare professional to interpret laboratory results within the context of overall health and clinical history.