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: Ans. is b i.e. USG "MSAFP values above 2.5 mom are considered abnormal. When a patient has an elevated MSAFP level, an ultrasound examination should be performed. This need not be a level scan. The reason for this examination is that it can detect several of the most common non genetic reasons causing high MSAFP values."