This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Protein bound iodine measures secretory function of thyroid in all of the following circumstances except 
Select and explain. 
A. Nephrotic syndrome, B. Following hemithyroidectomy, C. During ampicillin therapy, D. Asthamatics on ephedrine
A: Nephrotic syndrome
Answer: A: Nephrotic syndrome 
Explanation: None