What is the proper procedure for taking a patient's temperature using a thermometer?

The proper procedure for taking a patient's temperature with a thermometer involves following the manufacturer's instructions and ensuring correct placement. Each type of thermometer—oral, rectal, ear, or forehead—has specific requirements for accurate measurement. For instance, temperature-taking techniques differ based on the thermometer type and the area of the body being measured. Correct placement is crucial for obtaining a reliable reading, as an incorrect position can lead to inaccurate results. Adhering to these guidelines not only ensures the accuracy of the temperature reading but also enhances patient safety by minimizing any potential discomfort or harm.

The other approaches are inadequate because using any thermometer without regard for its type can lead to misleading results; only checking the temperature once may not capture fluctuations that could indicate a problem; and rubbing the thermometer to warm it up is unnecessary and inappropriate as it could influence the reading obtained.