<prompt> The following are characteristics of central fever exceptNo diurnal variationNo sweatingDecreased response to external coolingResistant to antipyretics  <response>: Central fever is due to a brain lesion that has disturbed hypothalamic temperature-regulating centers and has features like:Very high temperature like 42-44 deg CRelative bradycardiaNotable absence of perspirationNo diurnal variationPersists for days to weeksResistant to antipyreticsRef: Harrisons 18e p1716 