ABSTRACT
An 83-year-old woman was admitted to hospital with shortness of breath and fever. She was diagnosed with a community-acquired pneumonia and was treated with intravenous antibiotics. Despite being lucid throughout the day, she became agitated and confused overnight. The following morning, the patient’s mental state and cognition had returned to baseline. The patient had no history of dementia or cognitive impairment. Her past history was significant for hypertension and a previous hip replacement. Her regular medications were ramipril 2.5 mg OD and paracetamol 1 g QDS PRN. She lived alone and was independent with all activities of daily living. She did not drink alcohol and had never smoked.
