PEDIATRICS Vol. 43 No. 4 April 1969, pp. 637-638
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Capillary Po2 in Neonates

L. Stefan M.D.1, A. Leschin M.D.1, and K. Gray C.L.A.1

1 Blessing Hospital Quincy, Illinois

Capillary samples were obtained from warmed heel punctures of 30 full-term, healthy neonates 3 to 23 hours after birth (3 samples between 3-4 hours, 15 samples between 5-12 hours, and 12 samples between 12-23 hours). The blood was processed promptly, observing usual precautions, using London-Astrup equipment. Corrections were made to 37°C,assuming a rectal temperature of 36°C.After ternperatune correction, oxygen saturation was calculated from pH using Nelson's oxygen dissociation curve and Helleger's and Schruefer's pH corrections.