How To Use Mercury Thermometer

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How To Use Mercury Thermometer. If you have an old mercury thermometer that you decide to use shake it to get the mercury down to below 96 degrees F. Glass thermometers with galinstan GAL-in-stan may also be used to check an axillary temperature.

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If you are using a manual or mercury thermometer you must shake it down so that the mercury level is at least below 96 degrees F. With changes in temperature the mercury expands and contracts and the temperature can be read from the scale. Gently insert the thermometer until the ear canal is fully sealed off.

Gently insert the thermometer until the ear canal is fully sealed off.

The thermometer will indicate that its ready to be used with a sound light or both. The thermometer will indicate that its ready to be used with a sound light or both. In a mercury thermometer a small glass cylinder is filled with mercury and a standardized temperature scale is marked on the tube. They pose a danger if they break and release the mercury which is toxic.