labor and delivery questions and answers Related

Review labor and delivery questions and answers related questions and content

Which factor ensures that the smallest anterior-posterior diameter of the fetal head enters the pelvis?

  • A. Station
  • B. Flexion
  • C. Descent
  • D. Engagement
Correct Answer: B

Rationale: The correct answer is B: Flexion. Flexion of the fetal head is crucial for the smallest anterior-posterior diameter to enter the pelvis first. This position optimizes the fit of the fetal head through the maternal pelvis, reducing the risk of complications during labor. Station (A) refers to the level of the presenting part in the pelvis, descent (C) is the downward movement of the fetus, and engagement (D) is when the widest diameter of the fetal head passes through the maternal pelvic inlet. However, these factors do not specifically address the orientation of the fetal head to ensure the smallest diameter enters the pelvis.