8th July 2024

A 32-year-old male presents with a 4 days of history of right sided flank pain

A 32-year-old male presents with a 4 days of history of right sided flank pain. He is known to have nephrotic syndrome for which he is on immunosuppressants. Clinic follow up 2 months ago showed normal U&Es and an unremarkable urine dipstick. Investigations today show: Hb 140 g/L (115-165), WBC 10.4×10⁹/L (4-11), Neutrophils 9.0×10⁹/L (2-8), Platelets 420×10⁹/L (150-400), Na 136 mmol/L (135-145), K 4.2 mmol/L (3.5-5), Urea 8.4mmol/L (2.5-7.5), Creatinine 148 μmol/L (60-110), CRP 25 mg/L (<5). Urine dipstick showed 3+ protein and 1+blood. What is the most likely diagnosis in this case?

Select the SINGLE most appropriate option from the list below. Select ONE option only.