Is it true that kink in the clinical thermometer is used to prevent the level of mercury from contracting?

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Detailed Solution

The above statement is True.
The Kink ensures that mercury in the thermometer does not contract before the temperature has been read. Kink helps to prevent the backward flow of mercury into the thermometer after it is removed from the patient's mouth. It helps prevent the level of mercury from falling so that we can accurately read the patient's temperature. A slight bend or Kink in the capillary tube of the clinical thermometer close to the bulb ensures that the mercury does not move back into the bulb when the thermometer is taken out of a person's mouth for evaluation.
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