A primigravida at full dilation has the vertex deeply engaged in the occiput transverse position with marked asynclitism. The head is at +1 station and manual rotation has failed. Which instrument is specifically designed for this situation?
- A Simpson forceps
- B Kielland forceps ✓
- C Wrigley outlet forceps
- D Piper forceps
Correct answer: B. Kielland forceps
Explanation
Kielland forceps have minimal pelvic curvature, sliding locks, and directional knobs, allowing safe rotation of a deeply engaged head from occiput transverse or persistent occiput posterior positions, and correction of asynclitism. Simpson forceps have a strong pelvic curve suited to traction without rotation, Wrigley forceps are for outlet delivery, and Piper forceps are designed for the aftercoming head in breech delivery.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.