First pap smear should be done at:

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)