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Content: A pulse oximetry reading of 95 to 100 percent is normal in healthy babies. Babies with heart or lung problems may have lower readings. A low reading can be normal in newborns whose lungs and heart are adjusting after birth. Can a Baby with Serious CHD Have a Normal Pulse Oximetry Reading? It is possible that the test will not detect all forms of problems in the baby's heart. In such a case, the center recommends that the baby have normal visits with his or her primary care provider. STRENGTHS AND WEAKNESSES OF PULSE OXIMETRY
Dr. John Hokanson of the University of Wisconsin School of Medicine and Public Health summarizes the strengths and weaknesses of pulse oximetry screening of newborns as follows: Strengths - adds one last safety net for a number of newborns; pulse oximetry devices are cheap, non-invasive, and ubiquitous in hospitals. Weaknesses - will not detect all forms of congenital heart disease;