What may cause a combative behavior change in a patient with a history of psychosis?

Combative behavior changes in a patient with a history of psychosis can often be attributed to electrolyte imbalances. Electrolyte disturbances, such as those involving sodium, potassium, calcium, or magnesium, can significantly affect neurological function. In individuals with a pre-existing mental health condition like psychosis, these imbalances can exacerbate symptoms or trigger extreme reactions such as agitation or combativeness.

The relationship between electrolyte levels and neurological health underscores the importance of monitoring these factors postoperatively, especially in patients who might be more vulnerable due to their mental health history. Correcting any imbalances can help stabilize the patient's behavior and overall condition, leading to a more positive recovery experience.

While insufficient pain relief can contribute to agitation, it is primarily discomfort and not necessarily combative behavior. Postoperative infections might induce changes in behavior; however, they typically manifest through signs of systemic illness rather than immediate aggressive behavior. Excessive sedation could cause confusion or lethargy, but it’s less likely to produce a combative response compared to the direct neurological effects of electrolyte imbalances.