Thermometer Use and Care | Medical Devices

Different thermometers are now available and mercury filled ones are now considered unsafe.

Mercury-containing glass thermometers are no longer recommended because of safety concerns. If you have one in your home, consider replacing it with a digital electronic thermometer.

Digital electronic thermometers are accurate, easy to read, and durable. Temperature strips are very convenient and safe but are not as accurate as digital thermometers and should only be used to measure armpit (axillary) temperature. They are inaccurate when used on the forehead. Thermometers that measure the temperature in the ear are fast, easy to use, and quite accurate, but they are expensive.

Rectal thermometers with enlarged bulbs are helpful for children younger than 6 or anyone who cannot hold an oral thermometer in his or her mouth.

This material is intended for informational purposes only and is not a substitute for the medical advice of your doctor or any other health care professional. Always consult with your physician if you are in any way concerned about your health.