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Discussion Starter · #1 ·
I faced a question on this on USMLE Rx. Their answer is Calcium, which I totally disagree on because I though its an Ammonium Magnesium Phosphate stone?

I tried googling but couldn't really get anything.

What do you guys think?:confused:
 

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I think you are correct. But first, staghorn is a morphological rather than a chemical discription, as cystine stones may also cause staghorn calculi, but much less frequently.

Also struvite stones contain variable amounts of calcium beside ammonium, phosphate and magnesium, so it depends on the choices you have, but generally, saying calcium stones means either calcium phosphate or calcium oxalate :confused:
 
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