MRCP2-4319
A 35-year-old woman presents to the Emergency Department with a persistent dry cough and low-grade fever for the past three days. She reports difficulty sleeping due to the cough. She smokes five cigarettes per day, drinks occasionally, and works as a teacher. Her blood pressure is 118/80 mmHg, and her pulse is 82 bpm and regular. She is afebrile. Upon examination, her chest is clear.
The following investigations are conducted:
Haemoglobin (Hb): 142 g/l (normal range: 120-160 g/l)
White cell count (WCC): 8.0 × 109/l (normal range: 4.0-11.0 × 109/l)
Platelets (PLT): 195 × 109/l (normal range: 150-400 × 109/l)
Sodium (Na+): 142 mmol/l (normal range: 135-145 mmol/l)
Potassium (K+): 4.2 mmol/l (normal range: 3.5-5.0 mmol/l)
Creatinine (Cr): 95 µmol/l (normal range: 50-120 µmol/l)
What is the most appropriate course of action for managing this patient?