What is the usual relationship between pulse rate and temperature in a normal individual?
Pulse rate increases with temperature
For every 1 °C rise in body temperature, the pulse rate normally increases by about 10 beats per minute, because sympathetic drive and the metabolic rate rise with fever. So the usual relationship is that pulse rate increases as temperature increases.
Random fluctuation, unchanging pulse and an inverse relationship do not describe normal physiology (though relative bradycardia is seen in specific infections like typhoid as an exception).
Hence, Pulse rate increases with temperature.
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