This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
First pap smear should be done at: 
Select and explain. 
A. First visit to gynaec opd, B. Before 18 yrs of age, C. 3 yrs after 1st intercourse, D. Perimenopausal period
C: 3 yrs after 1st intercourse
Answer: C: 3 yrs after 1st intercourse 
Explanation: Ans C Ref: Williams Gynaecology Page 626PAP testAvoid during menstruation. Abstain from vaginal intercourse, douching, vaginal tampons, medicinal/ contraceptional cream for atleast 24-48hrs before test. Treat any cervicitis/vaginitis prior to test Sampling of transformation zone is of importance for sensitivity of testScreening of guidelines (American cancer society (ACS) Initiation: 3 yrs after lsl intercourse/by age 21 whichever is earlier.Intervals.Age <30Annual (conventional smear)Every 2 yrs (liquid based cytology)Age >30Every 2-3 yrs after 3 consecutive negative testIn high risk cases (HIV)- 2 tests/yr during 1st year of diagnosis of HIV, then yearlyDiscontinuation: at 70yrs, if 3 negative tests in last 10 yrs. Post hysterectomy(total hysterectomy)