02/09/2025 – Renal and Urology

Question Easy:
A 30-year-old woman presents with symptoms of dysuria, frequency, and urgency for the past three days. She reports no fever or flank pain. What is the most likely diagnosis?
A) Acute pyelonephritis
B) Urinary tract infection (UTI)
C) Interstitial cystitis
D) Bladder cancer
E) Nephrolithiasis

Explanations & Answers:

Question Easy Answer: B) Urinary tract infection (UTI)
Question Easy Explanation: A typical case of uncomplicated UTI in a young woman often presents with dysuria, urinary frequency, and urgency without systemic symptoms like fever or flank pain. According to NICE guidelines, such presentations are generally attributed to UTIs.

Question Medium:
A 55-year-old man presents with painless gross hematuria. His past medical history includes smoking. What would be the most appropriate initial investigation to perform?
A) Abdominal ultrasound
B) Urinalysis
C) Cystoscopy
D) CT urography
E) Prostate-specific antigen (PSA) test

Explanations & Answers:

Question Medium Answer: C) Cystoscopy
Question Medium Explanation: Painless visible hematuria in individuals over 45, especially with a history of smoking, raises suspicion for bladder cancer. According to NHS guidelines, a cystoscopy is the initial investigation of choice in such cases to directly visualize the bladder.

Question Hard:
An 18-year-old male presents with fatigue, cola-colored urine, and generalized swelling. He had a sore throat two weeks ago. Laboratory results show elevated anti-streptolysin O (ASO) titers and low C3 levels. What is the most likely diagnosis?
A) IgA nephropathy
B) Post-streptococcal glomerulonephritis
C) Minimal change disease
D) Goodpasture’s syndrome
E) Systemic lupus erythematosus

Explanations & Answers:

Question Hard Answer: B) Post-streptococcal glomerulonephritis
Question Hard Explanation: The patient’s presentation of cola-colored urine, facial edema, and a recent history of pharyngitis with elevated ASO titers and low C3 levels is indicative of post-streptococcal glomerulonephritis. This condition often follows a streptococcal infection and is characterized by these specific laboratory findings per NICE guidelines.

Medical fact of the day: The kidneys filter approximately 180 liters of blood every day, a volume that contains enough water to fill about 500 cups of tea!

Quote of the day: “In the tapestry of healing, each thread of compassion strengthens the fabric of medicine.”