RT Book, Section A1 Gomella, Tricia Lacy A1 Eyal, Fabien G. A1 Bany-Mohammed, Fayez SR Print(0) ID 1168356630 T1 Abnormal Blood Gas T2 Gomella's Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 8e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781259644818 LK accesspediatrics.mhmedical.com/content.aspx?aid=1168356630 RD 2024/03/28 AB An abnormal blood gas value for a neonate is reported by the laboratory. Blood gas measures pH, PCO2, and oxygen (O2), and all the other components (base excess, bicarbonate concentration, and oxygen saturation) are calculated based on the 3 levels measured. Accepted normal values for an arterial blood gas on room air are pH 7.35 to 7.45 (pH varies with age; a pH >7.30 is generally acceptable), PaCO2 35 to 45 mm Hg (slightly higher accepted if the blood pH remains normal), and PaO2 50 to 95 mm Hg (based on gestational age). (See Table 9–1, for normal range of arterial blood gas values for term and preterm infants.)