Question

Why can’t we use a laboratory thermometer to measure the body temperature?

• A. Because it does not have a kink.
• B. Its range does not include the body temperature range.
• C. It is difficult to handle.
• D. Laboratory thermometers do not have a digital display.

Answer 1

The correct option is A Because it does not have a kink.

A lab thermometer can’t be used to measure body temperature as it does not have a kink. The kink, in a clinical thermometer, prevents mercury levels from falling on its own so that temperature can be read even when the thermometer is no longer in contact with our body.