Which of the following conditions requires immediate medical attention?

A severe headache can indicate a range of serious underlying conditions that may require immediate medical attention. It might suggest the presence of a migraine, tension headaches, or more severe issues such as a concussion, brain aneurysm, or stroke, particularly if the headache is sudden, severe, or accompanied by other alarming symptoms like confusion, vision changes, or neurological deficits. Given that the severity and potential implications of a severe headache can lead to critical health outcomes, it’s vital to evaluate and treat such symptoms quickly to rule out any life-threatening conditions.

In contrast, a minor cut would typically not be an emergency if it can be managed with basic first-aid. A client simply feeling tired might indicate fatigue but does not suggest a medical emergency. Overexertion, while it can lead to discomfort, usually requires rest and hydration rather than immediate medical intervention unless it escalates to a more critical condition.