For this reason, rectal readings are considered to be the most accurate for infants and small children. In order to get an accurate reading from oral use, the tip of the device must be placed under the tongue with the mouth completely closed. Benefitsĭigital thermometers provide accurate readings in about 1 minute or less. Rectal thermometers run ½ to 1☏ (0.6☌) warmer than oral readings.
When assessing digital thermometer readings, keep in mind that armpit (axillary) temperature runs about ½ to 1☏ (0.6☌) cooler than oral readings.
They can be used to take temperature readings in the mouth, rectum, or armpit. Digital thermometers work by using heat sensors that determine body temperature.
