Station: This references the presenting part to the level of the ischial spines measured in plus orįlexion and Engagement: This occurs at various times before the forces of labor begin.ĭescent: This occurs as a result of active forces of labor. Pelvic inlet (e.g., LOT: the occiput is transverse and to the left).Įngagement: This occurs when the biparietal diameter is at or below the inlet of the true pelvis. Position: This describes the relation of the point of reference to one of the eight octanes of the Point of Reference of Direction: This is an arbitrary point on the presenting part used to orient Presentations: This describes the part on the fetus lying over the inlet of the pelvic or at the Lie: This refers to the longitudinal axis of the fetus in relation to the mother's longitudinal axis (i.e., transverse, oblique, or longitudinal (parallel). The normal fetal attitude when labor begins is with all joints in flexion.
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