answersLogoWhite

0

Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.

User Avatar

Wiki User

10y ago

What else can I help you with?

Continue Learning about Physics

When was the first thermometer invented?

In 1612 the inventor Santorio Santorio became the first to put a scale on his thermometer. It was perhaps the first crude clinical thermometer as it was designed to be placed in a patients mouth for temperature taking


Why clinical thermometer is jerked before using it again?

If you have an old thermometer that has mercury, then the shaking makes all of the mercury flow to the bottom of the thermometer. Then, you can get a better reading. The current digital ones work differently. Thermometers used for taking people temperatures are a special kind that go up with heat but don't go down with cold. So you have to shake a thermometer before taking your temperature to make the reading go down below your own temperature. Then the thermometer can go up again to read your temperature.


Why is there a constriction in a clinical thermometer?

The constriction prevents the mercury from returning back to the bulb when the thermometer is removed from a particular body.


Why does a nurse taking your temperature wait for the mercury thread in the thermometer to stop varying before taking the reading?

A nurse waits for the mercury thread in the thermometer to stop varying because it ensures that an accurate and stable temperature reading is obtained. The mercury needs to settle to provide an exact measurement reflecting the patient's body temperature. Any movement can lead to an inaccurate reading.


How does a forehead thermometer work?

A forehead thermometer works by measuring the infrared heat that is emitted by the blood vessels in the skin on the forehead. The thermometer detects these heat patterns and then converts them into a temperature reading. This non-invasive method is quick and convenient for taking someone's temperature.

Related Questions

When was the first thermometer invented?

In 1612 the inventor Santorio Santorio became the first to put a scale on his thermometer. It was perhaps the first crude clinical thermometer as it was designed to be placed in a patients mouth for temperature taking


What are three ways of taking a vital temperature?

Three ways of taking a vital temperature are using a digital thermometer orally, using a tympanic thermometer in the ear, or using a temporal artery thermometer on the forehead.


How should a thermometer be inserted when taking an oral temperature when using an electronic thermometer?

under the tongue to the side of the mouth


How should the thermometer be inserted when taking a oral temperature using an electronic thermometer?

under the tongue to the side of the mouth


What do you do before taking an axillary temperature?

Shake down the thermometer before using, if the reading on the thermometer is 94.0º F or above.


The tympanic thermometer is inserted into the what?

The tympanic thermometer is inserted into the outer ear canal.


How would you support the child's emotional needs when taking their temperature?

?be fore taking a child temperature say I'm going to take your temperature ,with a little thermometer,.its go under your arm and it doesn't hurt you.


Do you stir the water before taking the temperature?

No, it is not necessary to stir the water before taking the temperature. Just make sure the thermometer is placed in the water and give it a few seconds to accurately measure the temperature.


What happens when you put a penny under your tongue and the a thermometer?

Putting a penny under your tongue while taking your temperature with a thermometer can alter the temperature reading. The metal of the penny may interfere with the accuracy of the thermometer, leading to an incorrect reading. It is always best to follow the manufacturer's instructions for proper use of the thermometer.


When taking anal temperature can it cause involuntary loss of stool?

If you put the thermometer too far in, yeah.


Why clinical thermometer is jerked before using it again?

If you have an old thermometer that has mercury, then the shaking makes all of the mercury flow to the bottom of the thermometer. Then, you can get a better reading. The current digital ones work differently. Thermometers used for taking people temperatures are a special kind that go up with heat but don't go down with cold. So you have to shake a thermometer before taking your temperature to make the reading go down below your own temperature. Then the thermometer can go up again to read your temperature.


Why is there a constriction in a clinical thermometer?

The constriction prevents the mercury from returning back to the bulb when the thermometer is removed from a particular body.