Free Set
Question
Mechanism of labour - Engagement diameter well flexed head?
Options
ASuboccipito-bregmatic 9.5 cm Correct Answer
BSuboccipito-frontal 10 cm
CMento-vertical 13.5 cm
DSubmento-bregmatic 9.5 cm
Correct Answer & Explanation
Option A: Suboccipito-bregmatic 9.5 cm
Rationale
Well flexed head presents smallest diameter Suboccipito-bregmatic 9.5 cm for engagement. Deflexion presents larger diameters causing difficult labor.
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