What action should be taken if a patient is confused and has difficulty keeping their mouth closed?

Using a different method of temperature measurement is the most appropriate action in this situation due to the patient's confusion and difficulty in keeping their mouth closed. In scenarios where a patient is disoriented or unable to cooperate, using an oral thermometer may not yield an accurate or safe reading.

Alternative methods, such as tympanic (ear) thermometers or infrared forehead thermometers, can provide quicker and more comfortable temperature readings without requiring the patient to hold their mouth closed. These methods are also non-invasive and can be less stressful for the patient, thereby ensuring a more accurate assessment of their condition without exacerbating their confusion or discomfort.

In contrast to this choice, administering an oral temperature could pose a risk to both the patient's comfort and safety. Waiting for the patient to calm down could be impractical and may not address the immediate need for a temperature reading. Ignoring the situation altogether could lead to a deterioration in the patient's condition if they are feverish or unwell. Thus, utilizing a different method of measurement is the most sensible and effective approach to ensure the patient's wellbeing.