RT Journal Article SR Electronic T1 Sweat testing for cystic fibrosis. Diagnostic screening with a combination chloride ion-selective electrode. JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 483 OP 486 DO 10.1136/adc.53.6.483 VO 53 IS 6 A1 P T Bray A1 G C Clark A1 G J Moody A1 G Thomas A1 J D Thomas YR 1978 UL http://adc.bmj.com/content/53/6/483.abstract AB Screening of sweat chloride in newborn infants with the Orion Skin Chloride Measuring System and incorporating some procedural innovations is described. The results indicate that while diagnostic screening for cystic fibrosis can be readily undertaken, the test with the chloride ion-selective electrode is best left at least to the second day of life or later because of insufficient sweating in very young babies. Measurements on 2 babies with cystic fibrosis are also discussed.