MSRA-0502

MSRA-0502

A 42-year-old woman presents to the Emergency Department with dizziness and headache. On examination, her blood pressure is found to be 190/120 mmHg. She said that she had been diagnosed with hypertension on two previous occasions but discontinued drugs both times. She is a computer analyst and drinks 3–5 units of alcohol every day. Blood tests reveal:
Investigation Result Normal Value
Potassium (K+) 3.8 mmol/l 3.5–5.0 mmol/l
Corrected calcium (Ca2+) 3.03 mmol/l 2.20-2.60 mmol/l
Sodium (Na+) 140 mmol/l 135–145 mmol/l
Albumin 38 g/l 35–55 g/l
Magnesium (Mg2+) 0.60 mmol/l 0.75–1.00 mmol/l
Which of the following is the most likely diagnosis?