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A doctor dips the thermometer in a liquid before use because are 2 reasons (1) is that any infections of the previous patinet may have does not infect others(2)the mercury level should fall down to below 35 degrees.(2) answer to give a true reading of inner body heat because the intense heat of our body is present under our tongue.domestic animal have a 38.5 degrees celsius & birds have a 37.7.c
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It is anĀ antiseptic solution to prevent the bacteria from the previous patient to affect the present one. After use, the doctor / nurse replaces the thermometer in that same liquid
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