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Question 20#

The most common type of urinary stone is:

a. Calcium oxalate
b. Calcium phosphate
c. Uric acid
d. Infection
e. Cystine

Correct Answer is A

Comment:

Answer A

The most common types of urinary stones are composed of calcium oxalate (60%–70%) followed by calcium phosphate (10%–20%), infection stones (10%–15%) and then uric acid stones (5%–10%). Cystine stones occur in <1% of cases.