30th April 2024

A 65-year-old woman with a history of hypertension and type 2 diabetes presents with increasing fatigue and reduced appetite.

A 65-year-old woman with a history of hypertension and type 2 diabetes presents with increasing fatigue and reduced appetite. Her blood pressure is 145/90 mmHg. Physical examination reveals mild peripheral edema.

Investigations:

Creatinine: 190 μmol/L (60-120)

Urinalysis: Protein 2+, Blood 1+

Which is the most appropriate next investigation?