This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
10 Weeks pregnant lady, best method of aboion is 
Select and explain. 
A. Misoprostol + mifepristone, B. Diatation and curettage, C. Vaccum aspiration, D. Methotrexate and misprostol
C: Vaccum aspiration
Answer: C: Vaccum aspiration 
Explanation: Vacuum evacuation is the most efficient method of termination upto 12 wks of pregnancy.Vacuum AspirationDone under paracervical block, cervical os is dilated through hegar's dilators. Instrument used is Karman suction cannula. Suction pressure is 60-70cms of Hg. End point of suction is when:No more material is sucked outGripping of cannula by contracting smaller uterus Grating sensationAppearance of bubbles in cannulaMerits: OP procedureLow failure rate-<1%Complications like bleeding, perforation, infection are <2%Moality <2%(Refer: Mudaliar and Menon&;s Clinical Obstetrics, 11th edition, pg no: 494)(Refer: Shaw&;s Textbook of Gynaecology, 15th edition, pg no: 245)