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: Unknown
“Giant’s roll over” test for Pregnancy Induced Hypertension is done at: 
Select and explain. 
A. 22-24 wks, B. 28-32 wks, C. 24-26 wks, D. 32-34 wks
B: 28-32 wks
Answer: B: 28-32 wks 
Explanation: Roll over test:
This screening test for PIH is done between 28-32 wks. BP is measured with the patient on her side first and then the patient is asked to roll on her back to check the BP one again. An increase of 20mHg in diastolic pressure from side to back position indicates a positive “roll over test”. A negative test is of value.