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It depends on the type of thermometer. The traditional glass one needed 3 to 5 minutes to fully register. An electronic one may be much shorter time frame and often indicates the completion of the cycle by beeping.

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Q: How many minutes do you keep thermometer in mouth to measure fever?
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Which is other place than mouth where thermometer is kept to measure body temperature?

Armpit


Can a flu's fever go away and then come back five minutes later?

Probably not. It is more likely that your mouth was either cold the first time you took it or hot the second time you took it. You should always wait a minimum of 20 minutes before taking your temperature by mouth if you have had anything to eat or drink. If it is a digital thermometer instead of a mercury thermometer, it could also be an indication of battery or other failure.


How long does it take for a thermometer to reach the same temp as its surroundings?

Generally, you must leave a thermometer in your mouth approximately three minutes to get an accurate reading.


How many minutes should a thermometer be left in the mouth?

Tara is awesome you should research this and not look on wiki answers


Which are the sites in which a medical thermometer is inserted in order to measure body temperature?

The axilla is one of the four sites (the other three being the mouth, rectum, and ear canal) in which amedical thermometer may be inserted in order to measure body temperature.


How many minutes to get the body temperature using a thermometer?

The time required is as follows: 3 minutes if used in mouth and 5 minutes if used under the armpits. One degree is added in the last instance.


How do you measure a person's temperature?

For prescision, you can use a thermometer in the mouth under the toungue or in the underarms. For an estimation, the old hand-against-forehead works well.


Where does the thermometer be used at?

Depends on the thermometer. If it's a weather thermometer, then you use it outside. If it's a body temperature thermometer, then you use it in the mouth or behind.


Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?

Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.


What is the device that you put in your mouth if you have a cold?

thermometer


Can we measure the temperature by keeping the thermometer at some other place than the mouth?

Two other places is under an arm pit or inserted slightly into the anus.


Why doctor kept the thermometer under the arm?

When putting thermometer in the mouth of a crying child is difficult.