In most adults, a fever starts at an oral or axillary temperature of 37.6°C (99.7°F) or a rectal or ear temperature of 38.1°C (100.6°F). A child has a fever when his.
How to take an adult or child temperature using armpit or axillary, mouth or oral, ear or tympanic, and rectal methods, what a normal temperature is, and fever.
Here are step-by-step instructions on how to take rectal temperature in kids or adults who cannot hold an oral thermometer under the tongue.
Scand J Caring Sci. 2002 Jun;16(2):122-8. Normal oral, rectal, tympanic and axillary body temperature in adult men and women: a systematic literature review .
Care guide for Taking a Rectal Temperature. Includes: possible causes, signs and symptoms, standard treatment options and means of care.