<prompt> Hyperpyrexia is defined as, when body temperature is105.7degF106.6degF106.7degF107.8degF  <response>: C 106.7degF FEVER HYPERTHERMIA: The maximum normal oral temperature is 37.2degC 98.9degF at 6 A.M. and 37.7degC 99.9degF at 4 P.M.; these values define the 99th percentile for healthy individuals. In light of these studies, an A.M. temperature of 37.2degC 98.9degF or a P.M. temperature of 37.7degC 99.9degF would define. 