Table 14 Normal blood values in neonates, reference value data largely derived from North American Caucasians.
Red Blood Cell Values in Neonates: Mean and Lower Limit of Normal (-2 SD) | ||||||||
|---|---|---|---|---|---|---|---|---|
Hemoglobin (g/dL) | Hematocrit (%) | Red Cell Count (106/μL) | ||||||
Age | Mean | -2 SD | Mean | -2 SD | Mean | -2 SD | ||
Birth (cord blood) | 16.5 | 13.5 | 51 | 42 | 4.7 | 3.9 | ||
1 to 3 days (capillary) | 18.5 | 14.5 | 56 | 45 | 5.3 | 4.0 | ||
1 week | 17.5 | 13.5 | 54 | 42 | 5.1 | 3.9 | ||
1 month | 14.0 | 10.0 | 43 | 31 | 4.2 | 3.0 | ||
2 months | 11.5 | 9.0 | 35 | 28 | 3.8 | 2.7 | ||
Mean and Range of Leukocyte Count and Differential Count Values in Neonates | ||||||||
Neonatal age in hours (hr) | Total Leukocytes (10 3 /μL) | Neutrophils (10 3 /μL) | Lymphocytes (10 3 /μL) | |||||
Mean | Range | Mean | Range | % | Mean | Range | % | |
Birth | 18.1 | 9.0 – 30.0 | 11.0 | 6.0 – 26.0 | 61 | 5.5 | 2.0 – 11.0 | 31 |
12 hr | 22.8 | 13.0 – 38.0 | 15.5 | 6.0 – 28.0 | 68 | 5.5 | 2.0 – 11.0 | 24 |
24 hr | 18.9 | 9.4 – 34.0 | 11.5 | 5.0 – 21.0 | 61 | 5.8 | 2.0 – 11.5 | 31 |
1 month | 10.8 | 5.0 – 19.5 | 3.8 | 1.0 – 9.0 | 35 | 6.0 | 2.5 – 16.5 | 56 |