Reference Values

HEMATOCRIT (HCT)
Males
0-1 day: 42-60%
1-3 days: 45-67%
3-7 days: 42-66%
1-2 weeks: 39-63%
2-4 weeks: 31-55%
1-2 months: 28-42%
2-6 months: 29-41%
6 months-2 years: 33-39%
2-6 years: 34-40%
6-12 years: 35-45%
12-18 years: 37.0-49.0%
>18 years: 39-51%
Females
0-1 day: 42-60%
1-3 days: 45-67%
3-7 days: 42-66%
1-2 weeks: 39-63%
2-4 weeks: 31-55%
1-2 months: 28-42%
2-6 months: 29-41%
6 months-2 years: 33-39%
2-6 years: 34-40%
6-12 years: 35-45%
12-18 years: 36.0-46.0%
>18 years: 35-45%

Critical Value:  <15%

HEMOGLOBIN (HGB)
Males

0-1 day: 13.5-19.5 g/dL
1-3 days: 14.5-22.5g/dL
3-7 days: 13.5-21.5 g/dL
1-2 weeks: 12.5-20.5 g/dL
2-4 weeks: 10.0-18.0 g/dL
1-2 months: 9.0-14.0 g/dL
2-6 months: 9.5-13.5 g/dL
6 months-2 years: 10.5-13.5 g/dL
2-6 years: 11.5-13.5 g/dL
6-12 years: 11.5-15.5 g/dL
12-18 years: 13.0-16.0 g/dL

>18 years: 13.0-17.0 g/dL

Females

0-1 day: 13.5-19.5 g/dL
1-3 days: 14.5-22.5g/dL
3-7 days: 13.5 -21.5 g/dL
1-2 weeks: 12.5-20.5 g/dL
2-4 weeks: 10.0-18.0 g/dL
1-2 months: 9.0-14.0 g/dL
2-6 months: 9.5-13.5 g/dL
6 months-2 years: 10.5-13.5 g/dL
2-6 years: 11.5-13.5 g/dL
-12 years: 11.5-15.5 g/dL
12-18 years: 12.0-16.0  g/dL

>18 years: 11.8-15.8 g/dL

Critical Value: <5 g/dL or >20 g/dL