QuestionSBA
QuestionChoice
Only 5-10% of renal stones are made up of uric acid. Therefore, this is not the correct answer.
10008156
b
Uric acid
QuestionChoice
Only 5-10% of renal stones are made up of struvite. Struvite stones usually lead to the formation of a single, large staghorn calculus. Therefore, this is not the correct answer.
10008157
c
Struvite
QuestionChoice
80% of renal stones are made up of calcium oxalate or calcium phosphate, making this is the correct answer.
10008155
a
Calcium
QuestionChoice
This is a very rare form of renal stone that forms following treatment with indinavir – an HIV medication. This therefore not the correct answer.
10008159
e
Indinavir
QuestionChoice
Only about 1% of renal stones are made out of cysteine. They usually occur in people suffering from homocystinuria; an autosomal recessive inherited metabolic disorder. This is therefore not the correct answer.
10008158
d
Cysteine
Concept
Chapter
2693
4413
Renal Stones
Topic
142
Nephrology
14178
A 25-year-old man attends the Medical Assessment Unit with abdominal pain that started suddenly earlier that morning. The pain is primarily in his loin region with some radiation into his groin. He reports nausea and reduced appetite, but no vomiting so far.

A urine dipstick displays 2+ for blood but is otherwise unremarkable. He undergoes CT imaging which reveals that he has two small stones in his left ureter.

Which of the following is the most likely composition of renal stones?
a