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Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The most common serious complication of childhood pyrexia is febrile convulsion, occurring in children aged 1 to 5.

In general it is important to consider the effects of pyrexia on normal physiology - for example in fluid balance; it is generally accepted that for every degree above 37.8 degrees C a child has a temperature, the fluid requirement increases by 10%.

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