Fever o Normal body temperature 口37°C( set point D Circadian variation <10C: 363-37.20C 口 rectal t0.40C> oral t0.40C>aⅫ illary T ● Definition of fever D An elevation of core body temperature above the normal rangeFever ⚫ Normal body temperature:  37oC (set point)  Circadian variation <1o C ：36.3 - 37.2oC  rectal T 0.4oC > oral T 0. 4oC > axillary T ⚫ Definition of fever:  An elevation of core body temperature above the normal range