<prompt> After treatment of ectopic preg with methotrexate, HCG levels checked on___Day 0, day 4Day 4, day7Day 1 and 4Day 1 and 7  <response>: Ans. B. Day 4, day7. Inj. MTX 50 mgm2 of body surface area without leucovorin. Beta HCG should be measure on D4 and D7. Methotrexate can be used for primary treatment of ectopic pregnancy, treatment of persistent ectopic following evacuation. Beta-hCG level is checked every alternate day until beta-hCG level is decreased to 15 percent in 2 consecutive days. 