OBSbasic

Which statement best defines instrumental vaginal delivery?

Answer

An obstetric procedure using active measures to achieve delivery per vaginam

Explanation

**Instrumental vaginal delivery (IVD)** is defined as an obstetric procedure in which active measures are taken to achieve delivery through the vagina. Forceps and vacuum extraction are the two principal methods described. The other options describe spontaneous birth, abdominal delivery, or a third-stage procedure rather than IVD.\n\n**Key takeaway:** IVD refers to assisted vaginal birth using an instrument.\n\n**Glossary:** **Per vaginam**: Through the vagina; **forceps**: An instrument used to grasp and apply traction to the fetal head; **vacuum extraction**: Birth assisted by traction from a vacuum cup.

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