Which site is considered the most accurate for measuring body temperature?

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The rectal site is considered the most accurate for measuring body temperature due to its positioning within the body and its proximity to the core. This method reflects the internal body temperature more effectively than other sites, especially in the presence of external factors that may influence temperature readings—such as environmental temperature, recent activity, or food/drink intake.

When using the rectal method, it provides a stable and reliable reading, suitable for assessing the core temperature, which is critical in clinical settings. This is particularly useful in situations where precise temperature measurement is essential, such as in newborns, during surgery, or in cases of fever monitoring.

Other methods, while useful for general assessments or when less invasive options are preferred, such as oral, axillary, or temporal measurements, can yield values that are generally lower or can fluctuate based on various factors, making them less reliable for accurate body core temperature readings.

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