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Table 14 Normal blood values in neonates, reference value data largely derived from North American Caucasians.

From: Selected hematologic and biochemical measurements in African HIV-infected and uninfected pregnant women and their infants: the HIV Prevention Trials Network 024 protocol

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
  1. from Geaghan SM. Appendix B, Normal blood values: Selected health-associated values for neonatal, pediatric, and adult populations. Greer JP, Foerster J, Lukens JN., et al, eds. Wintrobe's Clinical Hematology (12th Ed.). Philadelphia: Lippincott Williams & Wilkins, 2009: 2584–6.