All tests · Complete Blood Count (CBC)
Complete Blood Count (CBC)
Normal range 12–17.5 g/dL (120–175 g/L SI). Specimen: Whole blood (EDTA).
Also known as: Hb, hgb.
| Specimen | Whole blood (EDTA) |
|---|---|
| Conventional range | 12–17.5 g/dL |
| SI range | 120–175 g/L |
| Conversion factor | ×10 (conventional → SI) |
| Critical value | < 7.0 g/dL (70 g/L) usually prompts transfusion consideration; > 20 g/dL |
| Panel | Complete Blood Count (CBC) |
Convert any Hemoglobin (Hgb) result between units on the unit converter.
The standard teaching reference range for Hemoglobin (Hgb) is 12–17.5 g/dL in conventional units, or 120–175 g/L in SI units. This value is measured in whole blood (edta).
A commonly taught critical (panic) value is < 7.0 g/dL (70 g/L) usually prompts transfusion consideration; > 20 g/dL. Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.
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