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: Gynaecology & Obstetrics
In pregnancy with increased MSAFP which of the following should be done: 
Select and explain. 
A. Repeat measurement of MSAFP at later date, B. USG, C. Amniocentesis, D. Termination of pregnancy
B: USG
Answer: B: USG 
Explanation: MSAFP is a screening test. If it is raised, it should be followed by a diagnostic test, i.e. either USG or amniocentesis as discussed earlier, these days for diagnosis of NTD, USG has replaced amniocentesis, hence answer is USG.