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: Anaesthesia
Risk factors associated with post-operative nausea and vomiting following strabismus surgery are all except - 
Select and explain. 
A. Age < 3years, B. Duration of anesthesia > 30 mins, C. Personal or family history of post - op nausea and vomiting, D. Personal or family history of motion sickness
A: Age < 3years
Answer: A: Age < 3years 
Explanation: Ans. is 'a' i.e., Age < 3 years Post operative nausea and vomiting (PONY) following strabismus surgery It can cause post - op wound dehiscence, hematoma, orbital hemorrhage and aspiration. 30 % of all procedures are associated with PONV. Major risk factors are: Age > 3years Duration of anesthesia > 30 mins Personal or family history of post - op nausea and vomiting Personal or family history of motion sickness Medical management of PONV includes: dimenhydrinate, metoclopramide, droperidol, dexamethasone, ondansatron