Normal Laboratory Values

🔬 Laboratory Reference Ranges

Normal Values for Routine and Important Lab Tests

Blood Count (Hematology)

Test	Normal Range	Units
White Blood Cell Count (WBC)	4.0 – 11.0	x10⁹/L
Red Blood Cell Count (RBC)	Male: 4.5 – 5.9 Female: 4.0 – 5.2	x10¹²/L
Hemoglobin (Hb)	Male: 13.5 – 17.5 Female: 12.0 – 15.5	g/dL
Hematocrit (Hct)	Male: 41 – 53% Female: 36 – 46%	%
Platelet Count	150 – 400	x10⁹/L
Mean Corpuscular Volume (MCV)	80 – 100	fL

Note: Values may vary slightly by lab and method.

Blood Chemistry

Test	Normal Range	Units
Sodium (Na⁺)	135 – 145	mmol/L
Potassium (K⁺)	3.5 – 5.0	mmol/L
Chloride (Cl⁻)	98 – 107	mmol/L
Bicarbonate (HCO₃⁻)	22 – 28	mmol/L
Glucose (Fasting)	70 – 99	mg/dL
BUN	7 – 20	mg/dL
Creatinine	0.7 – 1.3	mg/dL
Calcium (Total)	8.5 – 10.2	mg/dL
Albumin	3.5 – 5.0	g/dL
Total Protein	6.0 – 8.0	g/dL

Liver Function Tests (LFTs)

Test	Normal Range	Units
ALT (SGPT)	7 – 55	U/L
AST (SGOT)	8 – 48	U/L
ALP	40 – 129	U/L
Total Bilirubin	0.1 – 1.2	mg/dL
Direct Bilirubin	0.0 – 0.4	mg/dL

Lipid Profile

Test	Normal Range	Units
Total Cholesterol	< 200	mg/dL
HDL Cholesterol	Male: >40 Female: >50	mg/dL
LDL Cholesterol	< 100 (optimal)	mg/dL
Triglycerides	< 150	mg/dL

Endocrine & Special Tests

Test	Normal Range	Units
TSH	0.4 – 4.0	mIU/L
HbA1c	4.0 – 5.6%	%
CRP	< 10	mg/L
ESR	Male: <15 Female: <20	mm/hr

Note: Reference ranges depend on age, sex, and methodology.