In this article, we look at normal body temperature ranges in adults, children, and babies. a temperature taken in the rectum is the closest way to finding the bodys true temperature. Rectal temperatures run higher than those taken in the mouth or armpit (axilla) because the rectum is warmer. The normal rectal temperature of a child is between 97 and 100 f (36.). 6f (37c), your normal body temperature might be slightly higher or lower. If your body loses too much heat, it can be very serious, even fatal. Body temperature is kept in normal range by thermoregulation, in which adjustment of temperature is triggered by the central nervous system. rachel, 3rd year at student, demonstrates the basics of taking core temperature with a rectal thermometer. A comparative study on temperature accuracy between tympanic, rectal, and axillary sites. Procedure of rectal temperature measurement affects brain, muscle, skin, and body temperatures and modulates the effects of intravenous cocaine. Normal oral, rectal, tympanic and axillary body temperature in adult men and women a systematic literature review the purpose of this study was to investigate normal body temperature in adult men and women. 6c) throughout the day, depending on how active you are and the time of day. Body temperature is very sensitive to hormone levels and may be higher or lower when a woman is ovulating or having her menstrual period. underarm temperature is considered the safest way to check the body temperature of children under 3 months old.