A 65 year old man with macroscopic haematuria and acute kidney injury

A 65 year old man who presented to his general practitioner with a three day history of bright red, painless, macroscopic haematuria was found to have a raised serum creatinine of 461 μmol/L (reference range 60-105) (estimated glomerular filtration rate 11 mL/min/1.73 m2). His baseline serum crea...