Where on the body can a mercury thermometer be used to take temperature?

May 16, 2023 Source: Cainiu Health
Dr. Yang Shuwen
Introduction
A mercury thermometer can generally be used to measure body temperature under the armpit, with a normal range typically between 36℃ and 37℃. When placed under the tongue, the normal value ranges from 36.3℃ to 37.2℃. For rectal measurement, first clean the rectal area thoroughly, apply lubricant to the thermometer, then insert it into the anus; the normal temperature range is generally between 36.5℃ and 37.7℃.

A mercury thermometer can generally be used to measure body temperature at the armpit, mouth, and rectum. The specific procedures are as follows:

1. Armpit

Place the mercury thermometer in the center of the armpit and hold it firmly with your arm. Avoid moving around during measurement. After about 5 minutes, remove the thermometer and read the temperature according to the level of the mercury column. Normal armpit temperature typically ranges between 36°C and 37°C.

2. Mouth

First clean and disinfect the mercury thermometer. Place the end near the mercury bulb under the tongue, keep the mouth tightly closed, and hold for approximately 5 minutes. Then remove and read the value. Normal oral temperature generally ranges from 36.3°C to 37.2°C.

3. Rectum

Mercury thermometers can also be used for rectal temperature measurement. First clean the rectal area thoroughly, then apply a suitable lubricant to the thermometer. Gently insert it into the anus and hold the other end securely. Keep it in place for about 3 minutes before removal. Normal rectal temperature usually ranges from 36.5°C to 37.7°C. During the procedure, handle gently to avoid damaging the anal mucosa.

If abnormal body temperature is detected, it is recommended to seek timely medical evaluation, complete relevant examinations, identify the underlying cause, and receive targeted treatment accordingly.

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