Red Cell Values And Related Serum Values

Table A1-1. Hemoglobin Concentrations (g/dL) for Iron-Sufficient Preterm Infants0

Birth weight (g)

Age Number 1000-1500 1501-2000

Table A1-1. Hemoglobin Concentrations (g/dL) for Iron-Sufficient Preterm Infants0

Birth weight (g)

Age Number 1000-1500 1501-2000

2 weeks

17, 39

16.3 (11.7-18.4)

14.8 (11.8-19.6)

1 month

15, 42

10.9 (8.7-15.2)

11.5 (8.2-15.0)

2 months

17, 47

8.8 (7.1-11.5)

9.4 (8.0-11.4)

3 months

16, 41

9.8 (8.9-11.2)

10.2 (9.3-11.8)

4 months

13, 37

11.3 (9.1-13.1)

11.3 (9.1-13.1)

5 months

8, 21

11.6 (1Ü.2-14.3)

11.8 (1Ü.4-13.Ü)

6 months

9, 21

12.Ü (9.4-13.8)

11.8 (1Ü.7-12.6)

"These infants were admitted to the Helsinki Children's Hospital during a 15-month period. None had a complicated course during the first 2 weeks of life or had undergone an exchange transfusion. All infants were iron sufficient, as indicated by a serum ferritin greater than 10 ng/mL.

From Lundstrom U, Siimes MA, Dallman PR. At what age does iron supplementation become necessary in low-birth-weight infants J Pediatr 1997;91:878, with permission.

"These infants were admitted to the Helsinki Children's Hospital during a 15-month period. None had a complicated course during the first 2 weeks of life or had undergone an exchange transfusion. All infants were iron sufficient, as indicated by a serum ferritin greater than 10 ng/mL.

From Lundstrom U, Siimes MA, Dallman PR. At what age does iron supplementation become necessary in low-birth-weight infants J Pediatr 1997;91:878, with permission.

Table A1-2. Red Cell Values on First Postnatal Day

Gestational age (weeks)

24-25 (7)a 26-27 (11) 28-29 (7) 30-31 (25) 32-33 (23) 34-35 (23) 36-37 (20) Term (19)

Gestational age (weeks)

24-25 (7)a 26-27 (11) 28-29 (7) 30-31 (25) 32-33 (23) 34-35 (23) 36-37 (20) Term (19)

RBC x 106

4.65b

±

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