Published: 3 Nov 2024

Reference Ranges for Common Lab Tests

Complete Blood Count (CBC)

* White Blood Cells (WBC): 4,500 - 11,000 cells/mcL
* Red Blood Cells (RBC):
* Males: 4.7 - 6.1 million cells/mcL
* Females: 4.2 - 5.4 million cells/mcL
* Hemoglobin (Hgb):
* Males: 13.8 - 17.2 g/dL
* Females: 12.1 - 15.1 g/dL
* Hematocrit (Hct):
* Males: 40.7% - 50.3%
* Females: 36.1% - 44.3%
* Platelets: 150,000 - 450,000 platelets/mcL

Basic Metabolic Panel (BMP)

* 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
* Bicarbonate (CO2): 23 - 30 mEq/L
* Chloride: 98 - 107 mEq/L
* Blood Urea Nitrogen (BUN): 7 - 20 mg/dL
* Creatinine:
* Males: 0.6 - 1.2 mg/dL
* Females: 0.5 - 1.1 mg/dL

Comprehensive Metabolic Panel (CMP)

* Includes all BMP tests plus:
* Protein, Total: 6.0 - 8.3 g/dL
* Albumin: 3.5 - 5.0 g/dL
* Bilirubin, Total: 0.1 - 1.2 mg/dL
* Alkaline Phosphatase: 44 - 147 IU/L
* AST (SGOT): 10 - 40 IU/L
* ALT (SGPT): 7 - 56 IU/L

Lipid Panel

* Total Cholesterol: < 200 mg/dL
* LDL Cholesterol: < 100 mg/dL
* HDL Cholesterol:
* Males: ≥ 40 mg/dL
* Females: ≥ 50 mg/dL
* Triglycerides: < 150 mg/dL

Thyroid Panel

* TSH: 0.4 - 4.0 mIU/L
* Free T4: 0.8 - 1.8 ng/dL
* Free T3: 2.3 - 4.2 pg/mL

Key Points

* Reference ranges may vary slightly across different laboratories.
* Always refer to the specific ranges provided by your lab.
* Results outside the normal range may indicate various health conditions; consult a healthcare professional for further evaluation.