Amino acids excreted in the urine in cystinosis______________?
Correct answer: A. All of the above
- A. All of the above
- B. Ornithine
- C. Arginine
- D. Lysine
- E. Cystine
Explanation
Cystinosis causes a proximal tubular reabsorption defect with generalised aminoaciduria, including cystine, ornithine, arginine and lysine. Thus all the listed amino acids may be excreted.
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