A lady presents with complaints of abdominla pain. CECT shows bilateral papillary necrosis. Which of the following test shall not be done to investigate the cause of her papillary necrosis?
Urine acidification test
Sickling test
Urine -PCR for TB
Bacterial culture of urine
Ans. a. Urine acidification test(Ref: Harrison 19/e p1860, 18/e p2372)Urine acidification test is mainly done to diagnose A (Renal tubular acidosis), not the causes of papillary necrosis.