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Hemoglobin
Aka: Hemoglobin, Hgb, Hemoglobin Cutoffs for Anemia
- Interpretation: Normal Values per age (-2 to +2 S.D)
- Birth: 13.5 to 24.0 g/dl (mean 16.5 g/dl)
- Age <1 month: 10.0 to 20.0 g/dl (mean 13.9 g/dl)
- Age 1-2 months: 10.0 to 18.0 g/dl (mean 11.2 g/dl)
- Age 2-6 months: 9.5 to 14.0 g/dl (mean 12.6 g/dl)
- Age 0.5 to 2 years: 10.5 to 13.5 g/dl (mean 12.0 g/dl)
- Age 2 to 6 years: 11.5 to 13.5 g/dl (mean 12.5 g/dl)
- Age 6-12 years: 11.5 to 15.5 g/dl (mean 13.5)
- Female
- Age 12-18 years: 12.0 to 16.0 g/dl (mean 14.0 g/dl)
- Age >18 years: 12.1 to 15.1 g/dl (mean 14.0 g/dl)
- Male
- Age 12-18 years: 13.0 to 16.0 g/dl (mean 14.5 g/dl)
- Age >18 years: 13.6 to 17.7 g/dl (mean 15.5 g/dl)
- Interpretation: Anemia Cut-offs
- Men
- Age 12-14 years: <12.5 g/dl (CDC)
- Age 15-17 years: <13.3 g/dl (CDC)
- Age >17 years: <13 g/dl (WHO) or <13.5 g/dl (CDC)
- Women (Non-pregnant, non-lactating)
- Age 12-14 years: <11.8 g/dl
- Age 15-17 years: <12.0 g/dl
- Age >17 years: <12 g/dl (WHO and CDC)
- Women in Pregnancy (CDC Guidelines <5th percentile)
- First Trimester: <11.0 g/dl
- Second Trimester: <10.5 g/dl
- Third Trimester: <11.0 g/dl
- Children (CDC Guidelines <5th percentile)
- Age 1-2 years: <11.0 g/dl
- Age 2-5 years: <11.1 g/dl
- Age 5-8 years: <11.5 g/dl
- Age 8-11 years: <11.9 g/dl
- Infants (2 S.D. below mean)
- Term (cord blood): <13.5 g/dl (mean 16.5 g/dl)
- Newborn (1-3 days): <14.5 g/dl (mean 18.5 g/dl)
- Age 2 weeks: <13.4 g/dl (mean 16.6 g/dl)
- Age 1 month: <10.7 g/dl (mean 13.9 g/dl)
- Age 2 months: <9.4 g/dl (mean 11.2 g/dl)
- Age 6 months: <11.1 g/dl (mean 12.6 g/dl)
- Increased Hemoglobin
- Polycythemia Vera
- Vigorous Exercise
- High altitude
- Decreased Hemoglobin
- See Anemia
- References
- Behrman (2000) Nelson Pediatrics, Saunders, p. 1462
- Johnson (1993) Harriet Lane Handbook, Mosby, p. 231
- (1998) MMWR Morb Mortal Wkly Rep 47:1-29
- http://www.cdc.gov/mmwr/pdf/rr/rr4703.pdf