What is a potential side effect of undergoing general anaesthetic?

Undergoing general anaesthetic can lead to a sore throat as a potential side effect. This occurs primarily due to the placement of the endotracheal tube, which is often necessary for maintaining airway patency during surgery. The tube can irritate the throat and surrounding tissues, resulting in soreness or discomfort post-operatively. This side effect is relatively common and typically resolves on its own within a few days.

In contrast, the other options do not align with the typical side effects associated with general anaesthesia. Increased metabolism is not a recognized outcome; instead, general anaesthesia often slows down bodily functions. Severe headaches may occur in specific circumstances but are not a standard side effect; they might happen due to other factors unrelated to the anaesthetic itself. Intense focus is not a side effect of anaesthesia, as patients are usually in a state of unconsciousness and unable to concentrate or focus on any tasks or stimuli.