What is the normal response to a pain stimulus in AVPU?

In the context of the AVPU scale, which is used to assess a patient's level of consciousness, the correct response to a pain stimulus is for the patient to demonstrate movement. This indicates that the patient is at least responsive to external stimuli, which is a key element in determining their level of awareness or responsiveness.

When a patient responds to a painful stimulus by demonstrating movement, it shows that they have a certain degree of consciousness, even if it is not fully alert or oriented. This movement can manifest as purposeful actions, such as withdrawal from the stimulus or other involuntary reactions, which signify that the patient is not completely unresponsive.

The other responses on the scale further delineate the levels of consciousness. If the patient were to remain unresponsive, then it would indicate a lower level of consciousness than simply reacting to pain. Vocalizing clearly would suggest a higher level of awareness, but it does not specifically correspond to a pain stimulus, as the patient could be able to speak without responding to pain. Lastly, remaining alert implies a full state of consciousness, which is more comprehensive than simply responding to pain. Thus, the response indicating movement is the appropriate and expected reaction within this assessment framework.