Skin Surface Carbon Dioxide Tension in Sick Infants
1 Department of Pediatrics and the Cardiovascular Research Institute, University of California, San Francisco
Skin surface Pco2 (Psco2) was measured at 44 C in 17 sick infants using a Radiometer surface Pco2 electrode. Values obtained for Psco2 were compared with simultaneous values for arterial Pco2 (Paco2). Psco2 was found to be linearly related to Paco2 by a regression line with a slope 1.37. Paco2 could be predicted from Psco2 to within 6 torr in all instances. The relationship was not affected by the patient's gestational age, postnatal age, weight, or blood pressure. This electrode is a valuable clinical tool in the management of sick infants.
Submitted on July 16, 1979Accepted on August 27, 1979
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