Question

Give the reason why we cannot measure body temperature with the help of a laboratory thermometer.

Answer 1

Lab thermometers are designed to measure immediate temperature so upon removing it from a body orifice to read it the temperature reading will change. Clinical thermometers are designed to read and hold the maximum temperature encountered. That's why one supposedly could fake a fever by holding the thermometer on a radiator until it read 105F so you could go to the hospital instead of school.

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Answer 2

since laboratory thermometer is scaling with -10 degree to 110 degree while human temperatures varies with 37 to 42 degree.