Pulse Oximetry Saturations in the First 6 Hours of Life in Normal Term Infants

Abstract

The pulse oximetry saturation values and the average percentage of time that normal newborns spend at different saturation ranges in the first 6 hours of life were determined in a cross-sectional study. Pulse oximetry saturation values were measured for a single 20-minute period in 101 normal term newborns between 20 minutes and 6 hours of age. The 25th percentile saturation values in the first postnatal hour (range 91%-100%) were lower than those from the second postnatal hour (range 96%-100%) onward. There was no significant difference between the 50th percentile (range 96%-100%) and the 75th percentile (range 97%-100%) saturation values in all postnatal hours. The babies spent a majority of time with saturations?96% in all postnatal hours. A newborn more than 20 minutes old who does not achieve a pulse oximetry saturation value of 96% over several minutes of observation may need evaluation or continuous monitoring.

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References

1. Katzman GH

The newborn SpO2: a routine vital sign whose time has come?

Pediatrics. 1995;95:161-162.

2. Harris AP , Sendak MJ , Donham RT Changes in arterial oxygen saturation immediately after birth in the human neonates. J Pediatr. 1986;109:117-119.

3. Meier-Stauss P , Bucher HU , Hurlimann R , et al. Pulse oximetry used for documenting oxygen saturation and right-to-left shunting immediately after birth. Eur J Pediatr. 1990;149:851-855.

4. House JT , Schultetus RR , Gravenstein N . Continuous neonatal evaluation in the delivery room by pulse oximetry. JClin Monitoring. 1987;3:96-100.

5. Dimich I , Singh PP , Adell A , et al. Evaluation of oxygen saturation monitoring by pulse oximetry in neonates in the delivery system. Can J Anaesth. 1991;38:985-988.

6. Porter KB Evaluation of arterial oxygen saturation of newborn in the labor and delivery suite. J Perinatol. 1987;7:337-339.

7. Koch G , Wendel H . Adjustment of arterial blood gases and acid base balance in the normal newborn infant during the first week of life. Biol Neonat. 1968;12:136-161.

8. Rajadurai VS , Walker AM , Yu VY , Oates A . Effect of fetal hemoglobin on the accuracy of pulse oximetry in preterm infants. J Pediatr Child Health. 1992;28:43-46.

9. Richard D , Poets CF , Neale S , et al. Arterial oxygen saturation in preterm neonates without respiratory failure. J Pediatr. 1993;123:963-968.

10.

10. Johnson GL Clinical examination. In: Long WA , ed. Fetal and Neonatal Cardiology. Philadelphia: WB Saunders; 1990:227-227.

11.

11. Carrasco M , Martell M , Estol PC Oronasopharyngeal suction at birth: effects on arterial oxygen saturation. J Pediatr. 1997;130:832-834.

12.

12. Hauth JC , Merenstein GB , eds. Guidelines for Perinatal Care, 4th ed. Elk Grove Village, IL: American Academy of Pediatrics; 1997:155-155.

13.

13. Mower WR , Sachs C , Nicklin EL , Baraff LJ Pulse oximetry as a fifth pediatric vital sign. Pediatrics. 1997;99: 681-686.

14.

14. Alenick DS , Holzman IR , Ritter SB The neonatal transitional circulation: a combined noninvasive assessment. Echocardiography. 1992;9:29-37.

15.

15. Poets CF , Southall DP In reply to Dr. Katzman's letter to editor. Pediatrics. 1995;95:162-162.

16.

16. Thilo EH , Andersen D , Wasserstein ML , et al. Saturation by pulse oximetry: comparison of the result obtained by instruments of different brands. J Pediatr. 1993;122:620-626.