Using the NCIT:
An infrared thermometer can be used on both the forehead and wrist. Just make sure that the body surface is dry and clean to get correct readings . You also need to ensure that the thermometer is used from the ideal distance so that it can sense the body temperature correctly.
It can be the temple, the center of the forehead, or even the area near the ear . Any other place that is not recommended by the manufacturer may result in poor body temperature measurement or incorrect reading.
Under the armpit (axillary method) In the mouth (oral method) In the ear (tympanic method) In the rectum/bum (rectal method)
Research has shown that, when used correctly, infrared or no-contact thermometers are just as accurate as oral or rectal thermometers . No-contact thermometers are popular among pediatricians, as kids often squirm around when trying to get a temperature read, but it also holds true in mass temperature screenings.
A forehead (temporal) scanner is usually 0.3°C (0.5°F) to 0.6°C (1°F) lower than an oral temperature .
Rectal temps are the most accurate. Forehead temps are the next most accurate. Oral and ear temps are also accurate if done properly. Temps done in the armpit are the least accurate.
A digital thermometer is best for taking temperatures by the armpit and mouth .Aug 1, 2021