Which of the following cardinal movements of labor comes first?

Engagement is recognized as the first cardinal movement of labor. This movement refers to the transference of the fetal presenting part into the pelvic inlet, marking the point at which the largest diameter of the fetal head meets the pelvic inlet. Engagement is critical for providing the optimal positioning needed for subsequent movements of labor. It indicates that the fetal head has descended into the true pelvis and is positioned for further descent.

In the context of the cardinal movements, after engagement, the fetal head will typically undergo descent, flexion, and then internal rotation. Each of these movements is essential for navigating the curves of the pelvic canal and facilitating a successful birth. Understanding this sequence is crucial for nursing care and support during the labor process, as it helps anticipate the stages of labor and any potential challenges that might arise.