What is the correct method for measuring an infant's temperature?

Measuring an infant's temperature can be done accurately using a few different methods, but the proper technique will vary depending on factors such as age, condition, and the desired level of accuracy. Placing the tip of the thermometer under the center of the infant's axilla is a recommended practice, especially for routine checks, as it provides a safe and non-invasive way to measure temperature. This method is appropriate for infants because it minimizes discomfort and risk associated with rectal temperatures, which are typically more invasive and require careful technique to ensure safety.

In contrast, while measuring rectally can provide the most accurate core temperature for infants, this method is more invasive and generally recommended only in clinical settings or when precise measurement is critical. Oral temperature readings are unsuitable for infants due to their developmental stage; infants typically cannot hold a thermometer in their mouth adequately. Lastly, using a forehead thermometer can offer a quick reading but may lack the accuracy of other methods, especially in infants, and should not be relied upon for definitive temperature assessments. Thus, using the axillary method is a safe and commonly accepted practice when measuring temperature in infants.