Final answer:
A 76-year-old male presenting with confusion and an inability to lift his left arm is showing signs of a stroke. Stroke is caused by the interruption of blood flow to a portion of the brain and can result in various symptoms including muscle weakness, speech disturbances, sensory problems, memory loss, and confusion. Risk factors for stroke include high blood pressure, diabetes, high cholesterol, and a family history of stroke.
Step-by-step explanation:
A 76-year-old male presenting with confusion and an inability to lift his left arm, along with a history of high blood pressure and headache, is showing signs and symptoms of a stroke. Stroke occurs when blood fails to reach a portion of the brain, causing neuronal death and various symptoms such as headache, muscle weakness, speech disturbances, sensory problems, memory loss, and confusion. Risk factors for stroke include high blood pressure, diabetes, high cholesterol, and a family history of stroke.