What is the purpose of shaking the clinical thermometer before using it the second time?

What is the purpose of shaking the clinical thermometer before using it the second time?

Because a clinical mercurythermometer is built to hold its maximum reading. You have toshake the mercury back down into the bottom so the reading is LESS than normal body temperature before using it on the next person.

Do thermometers need to be shaken down?

d. (1) If the thermometer reading is below 94ºF (34.4º C), you have shaken down the thermometer sufficiently. (2) If the thermometer reads 94º F (34.4º C) or above, continue to shake down the thermometer until a desired reading is shown.

Why the clinical thermometer should be handled carefully?

Note: After noting the body temperature, the level of mercury can be brought down by giving jerk to the thermometer tube. As mercury is very toxic and is difficult to dispose off, so thermometer must be handled carefully.

Do you have to shake down a non mercury thermometer?

This thermometer is far more accurate than digitals, and it does not easily break. Don’t use the sock trick, you just need to hold this at the end of the tube and flick your wrist with a downward motion for about ten seconds. It will shake down just fine.

Why should a thermometer never be used to stir a liquid?

Mercury is a dangerous substance that can be hazardous to your health if are in contact with it. Thermometers are very fragile and must be handled with care. Never use a thermometer to stir a liquid.

Why he dips the thermometer in a liquid before and after use?

Why a doctor dips the thermometer in a liquid before use? That liquid is actually, alcohol. Since the thermometer is kept beneath the tongue, it needs to be cleaned to use it again. Therefore doctor dips the thermometer in alcohol, which acts as a disinfectant, to clean the thermometer.

What are the precautions while using clinical thermometer?

Precautions while using clinical thermometer

• Thermometer should be washed be fore and after each use ,preferably with an antiseptic solution.
• Do not wash the thermometer with hot water.
• Ensure that before use the mercury level is below 35 ∘C.
• Read the thermometer keeping the level of mercury along the line of sight.

Why shaking the clinical thermometer before and after taking temperature?

The shaking is to reduce the level of the medium in the thermometer to a temperature well below normal so that an an accurate temperature can be read after using.

How do you shake down a non mercury thermometer?

Why do we need to shake a thermometer before using it?

There is a small bend in the mercury channel of a clinical thermometer that uses mercury. You must shake the thermometer to get the mercury from a previous reading from the thermometer back into the bulb (or at least to a low temperature number) so that a new reading can be taken.

What do you need to know about a clinical thermometer?

Clinical thermometers are meant for measuring the human body temperature. It is a narrow glass tube with a bulb containing mercury at one end. These thermometers have the calibrated range of 35˚C to 43˚C. Like any other glass thermometer, the level of mercury rises when temperature increases; it shows the body temperature in the Celsius scale.

Why does the Mercury go up on a thermometer?

Like any other glass thermometer, the level of mercury rises when temperature increases; it shows the body temperature in the Celsius scale. You will note that there is a kink or constriction in the tube just above the mercury bulb. This is to prevent the mercury from returning to the bulb when the thermometer is held up for taking the reading.

Why does a thermometer Jerk when you have a fever?

the jerking motion causes the column of mercury in the thermometer to return to a level below the normal so that if you have a fever it will rise properly to indicate how high your body temperature actually is. Originally Answered: A clinical thermometer is jerked for a few times before using it.