Surgery MCQ – Renal Calculi in proteus infection

Which of the following renal calculi is seen associated with proteus infection?

A. Calcium Oxalate

B. Triple Phosphate

C. Xanthine

D. Uric Acid

Correct answer : B. Triple Phosphate

High ammonia concentration leads to the formation of triple phosphate stones. This arises when urine is infected with urea splitting organisms like Proteus.

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