What are the differences between the measurement points?

Each measurment point has its advantages and disadvantages. A patient’s temperature can be taken anally, orally, axillarily, by forehead or by ear.

Anal:

Use: the probe of the analog or electronic thermometer is inserted into the rectum. This technique is especially used for infants or very young children.

Advantages: this is the most reliable and accurate method because it gives the central body temperature.

Disadvantages: this method is uncomfortable for the patient. It requires that the child be positioned correctly for safety reasons and that the thermometer tip be properly disinfected each time it is used.

Oral:

Use: the probe of the analog or electronic thermometer is placed under the patient’s tongue. The patient must keep his or her mouth closed and breathe through the nose while the measurement is being taken.

Advantages: This method is easy to use for patients other than infants and young children.

Disadvantages: this technique is less precise than the rectal route. The measurement remains reliable as long as the patient’s mouth is closed when taking his or her temperature. It is necessary to wait 15 minutes after drinking or eating before measuring the temperature. The thermometer must also be cleaned thoroughly after each use.

Please note: For safety reasons, an analog thermometer made of breakable glass cannot be used for oral measurement on babies and young children. In this case, a pacifier type thermometer should be used instead.

Forehead:

Use: this measurement can be taken with a non-contact electronic infrared thermometer or via a strip that is placed directly on the patient’s forehead.

Advantages: this is a quick and easy method to use. It is practical as it does not cause any discomfort for the patient. In the case of infrared thermometers, it is hygienic because there is no contact.

Disadvantages: the measurement is not as precise as if taken by the rectum or ear.

Ear:

Use: an electronic ear thermometer is used. The probe is inserted into the ear canal. Disposable tips can be used.

Advantages: this is a quick and easy method to use.

Disadvantages: this technique is reliable but the potential presence of a buildup of earwax can distort the results. It is also essential to follow the instructions for use so as not to damage the patient’s ear.

Axillary:

Use: The probe of the analog or electronic thermometer is placed under the patient’s armpit, right in the middle. The patient must place his or her arm back against his or her body.

Advantages: this is an easy method to use.

Disadvantages: this is an unreliable and imprecise method because of the air that can pass under the armpit.