Parameter
Haemoglobin (Male)
Normal Range (Adult)
13 to 17 g/dL
ReferenceAll Years (1st-Final)All UniversitiesNormal Lab Values
Normal Lab Values Chart (MBBS Reference)
A quick-reference chart of standard adult normal lab values, compiled for MBBS students across all four years. Useful for Physiology and Biochemistry practicals in the early years, Pathology and Medicine case discussions later on, and viva prep throughout the course. This chart is intended as an MBBS exam and study reference. It is not a clinical diagnostic tool, and reference ranges can vary slightly between textbooks and laboratories.
SME-reviewed. Updated 2026.
Open this reference chart in the GeckoMed app for quick access during practicals and viva prep.Normal Lab Values Chart
Haematology
| Parameter | Normal Range (Adult) |
|---|---|
| Haemoglobin (Male) | 13 to 17 g/dL |
| Haemoglobin (Female) | 12 to 15 g/dL |
| Total RBC Count | 4.5 to 5.5 million/mm³ |
| Total WBC Count | 4,000 to 11,000/mm³ |
| Platelet Count | 1.5 to 4.5 lakh/mm³ |
| ESR (Male) | 0 to 10 mm/hr |
| ESR (Female) | 0 to 15 mm/hr |
| PT (Prothrombin Time) | 11 to 15 seconds |
| aPTT | 25 to 35 seconds |
Parameter
Haemoglobin (Female)
Normal Range (Adult)
12 to 15 g/dL
Parameter
Total RBC Count
Normal Range (Adult)
4.5 to 5.5 million/mm³
Parameter
Total WBC Count
Normal Range (Adult)
4,000 to 11,000/mm³
Parameter
Platelet Count
Normal Range (Adult)
1.5 to 4.5 lakh/mm³
Parameter
ESR (Male)
Normal Range (Adult)
0 to 10 mm/hr
Parameter
ESR (Female)
Normal Range (Adult)
0 to 15 mm/hr
Parameter
PT (Prothrombin Time)
Normal Range (Adult)
11 to 15 seconds
Parameter
aPTT
Normal Range (Adult)
25 to 35 seconds
Biochemistry (Blood)
| Parameter | Normal Range (Adult) |
|---|---|
| Fasting Blood Glucose | 70 to 100 mg/dL |
| Postprandial Blood Glucose | Less than 140 mg/dL |
| Blood Urea | 15 to 40 mg/dL |
| Serum Creatinine | 0.6 to 1.2 mg/dL |
| Serum Sodium | 135 to 145 mEq/L |
| Serum Potassium | 3.5 to 5.0 mEq/L |
| Serum Calcium | 8.5 to 10.5 mg/dL |
| Total Bilirubin | 0.3 to 1.0 mg/dL |
| Total Protein | 6.0 to 8.0 g/dL |
| Serum Albumin | 3.5 to 5.0 g/dL |
| SGOT (AST) | Up to 40 U/L |
| SGPT (ALT) | Up to 40 U/L |
| Serum Alkaline Phosphatase | 40 to 130 U/L |
Parameter
Fasting Blood Glucose
Normal Range (Adult)
70 to 100 mg/dL
Parameter
Postprandial Blood Glucose
Normal Range (Adult)
Less than 140 mg/dL
Parameter
Blood Urea
Normal Range (Adult)
15 to 40 mg/dL
Parameter
Serum Creatinine
Normal Range (Adult)
0.6 to 1.2 mg/dL
Parameter
Serum Sodium
Normal Range (Adult)
135 to 145 mEq/L
Parameter
Serum Potassium
Normal Range (Adult)
3.5 to 5.0 mEq/L
Parameter
Serum Calcium
Normal Range (Adult)
8.5 to 10.5 mg/dL
Parameter
Total Bilirubin
Normal Range (Adult)
0.3 to 1.0 mg/dL
Parameter
Total Protein
Normal Range (Adult)
6.0 to 8.0 g/dL
Parameter
Serum Albumin
Normal Range (Adult)
3.5 to 5.0 g/dL
Parameter
SGOT (AST)
Normal Range (Adult)
Up to 40 U/L
Parameter
SGPT (ALT)
Normal Range (Adult)
Up to 40 U/L
Parameter
Serum Alkaline Phosphatase
Normal Range (Adult)
40 to 130 U/L
Reference ranges above are the commonly cited adult values taught in MBBS curricula. Always confirm exact cut-offs against your prescribed textbook, since minor variations exist between sources and laboratories.
How This Appears in MBBS Exams
Normal lab values are tested in several formats across the MBBS course:
- Short answer or fill-in-the-blank questions in Physiology and Biochemistry practicals: "Write the normal range of [parameter]."
- Viva questions where you are asked to interpret whether a given value is normal, raised, or low
- Case-based questions in Pathology and Medicine where lab values are provided and you are asked to identify the abnormality
- OSCE-style stations combining a lab report with a clinical scenario
Frequently Asked Questions
Are these lab values applicable to clinical practice?
No. This chart is compiled as an MBBS study and exam reference. Reference ranges used in actual clinical practice should always come from the reporting laboratory, since methods and units can vary.
Do normal lab values differ between textbooks?
Yes, slightly. Different standard textbooks and laboratories use marginally different reference ranges. The values here reflect commonly taught ranges, but you should always cross-check against your prescribed textbook before an exam.
Which MBBS years use this chart most?
1st Year students use it for Physiology and Biochemistry practicals, while 2nd Year and Final Year students use it for Pathology and Medicine case discussions and vivas.
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