The Journal of the Association of Physicians of India
-
Fever is defined as a core body temperature of >38.3 degrees C or 101 degrees F. About 50% of fevers in the ICU are due to infectious causes. Absence of fever in patients with infection heralds a poor prognosis. ⋯ Fever should be distinguished from hyperthermia as antipyretics are ineffective in the latter. Inappropriate use of antibiotics selects resistant bacterial strains, but delay in treating infection could increase mortality. A structured approach is therefore required in order to correctly diagnose and treat fever in critically ill patients.