19th August 2020

A 55-year-old female presents to her GP with a 4-week history of muscle cramps, nocturia and polyuria

A 55-year-old female presents to her GP with a 4-week history of muscle cramps, nocturia and polyuria. She is normally fit and well with no significant past medical history. Her family history includes early-onset hypertension on her mothers’ side. She denies any significant recent lifestyle changes. On examination, her blood pressure is 160/80, compared to her last reading three months ago of 110/70. 

Select the SINGLE most likely diagnosis from the list below. Select ONE option only.