MRCP2-2083

MRCP2-2083

A 56-year-old woman with a history of Sjogren’s syndrome visits her GP complaining of fatigue. Upon physical examination, no abnormalities are found. The patient does not take any regular medication except for artificial tears, drinks 10 units of alcohol per week, and does not smoke. The GP refers her to your clinic after routine blood tests reveal the following results:

Hb 140 g/l
Na+ 134 mmol/l
Bilirubin 6 µmol/l
Platelets 225 * 109/l
K+ 3.7 mmol/l
ALP 650 u/l
WBC 6.7 * 109/l
Urea 4.2 mmol/l
ALT 36 u/l
Neuts 4 * 109/l
Creatinine 90 µmol/l

What is the most probable diagnosis?