C J MORLEY, P H HEWSON, Alison Jane Thornton, T J COLE

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Rectal and axillary temperatures were measured during the daytime in 281 infants seen randomly at home and 656 at hospital under 6 months old, using mercury-in-glass thermometers. The normal temperature range derived from the babies at home was 36.7-37.9-degrees-C for rectal temperature and 35.6-37.2-degrees-C for axillary temperature. Rectal temperature was higher than axillary in 98% of the measurements. The mean (SD) difference between rectal and axillary temperatures was 0.7 (0.5)-degrees-C, with a range of 3-degrees-C. When used in hospital to detect high temperature, axillary temperature had a sensitivity of 73% compared with rectal temperature. This is too insensitive for accurate detection of an infant's high temperature. Rectal temperature measurement is safer than previously suggested: perforation has occurred in less than one in two million measurements. If an infant's temperature needs to be taken, rectal temperature should be used.

Original languageEnglish
Pages (from-to)122-125
Number of pages4
JournalArchives of Disease in Childhood
Issue number1
Publication statusPublished - Jan 1992


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MORLEY, C. J., HEWSON, P. H., Thornton, A. J., & COLE, T. J. (1992). AXILLARY AND RECTAL TEMPERATURE-MEASUREMENTS IN INFANTS. Archives of Disease in Childhood, 67(1), 122-125.