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Why does the temperature not fall immediately after taking a clinical thermometer from the mouth?
Wiki User
∙ 8y ago
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
Wiki User
∙ 8y ago
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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 the liquid in a thermometer go down before the temperature is taken?
It does not by itself. It must be shaken down. The liquid is mercury, which is very heat-expansive, i.e. it changes its volume noticeably and quickly depending on its temperature. The warmer, the larger the volume. That's why it's used in thermometers. However, thermometers are built so that the mercury does not go down by itself to enable taking precise readings (otherwise, it would fall quickly immediately after the thermometer is removed from the body). So, the thermometer must cool and the contracted but vacuum-stuck mercury must then be shaken down to take another measurement.
Why does the liquid in a thermometer move?
It doesn't 'move' exactly, it expands. Originally mercury (a metal in a liquid state at room temperature) was used in thermometers; as the the temperature increases the mercury (or other liquid) expands, taking up more of the volume within the thermometer, causing the level to rise. Thermometers are calibrated to allow the temperature to be measured based on how much expansion has taken place.
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.
Function of a thermometer?
TemperatureThermometers measure temperature, as opposed to heat. Temperature is an intensive property of matter, whereas heat is an extensive one. The Arctic Ocean has more heat than a boiling teapot of water, even though the latter's temperature is much higher, because extensive properties depend upon the amount of stuff you have. Specifically, thermometers measure temperature, which is the speed of particles. The faster the particles in a substance move, the higher the temperature. Slower moving particles have a lower temperature.
What are the uses of weather thermometer?
to measure the temperature of a person or animals (living things) to see if their temperature is too high than the average temp.
Why the thermometer is kept under the tongue while taking temperature?
So you can measure the persons temp
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.
When taking anal temperature can it cause involuntary loss of stool?
If you put the thermometer too far in, yeah.
Why does a nurse taking your temperature wait for the thermometer reading to stop changing?
It is only after the measurement stops increasing that it shows the person's body temperature.
How do you take a cow's temperature?
You stick a thermometer (one suitable for taking temperature from a human or animal) up the anus and hold it there for around 20 seconds.
