Obstertric Nursing Nur-201/nur-217/nur-218 Concepts In Care Of The Client In Obstertrics And Gynecologic Nursing.

OBSTERTRIC NURSING NUR-201/NUR-217/NUR-218 CONCEPTS IN CARE OF THE CLIENT IN OBSTERTRICS AND GYNECOLOGIC NURSING. COMPONENTS OF LABOR (4Ps of Labor) A successful labor depends on four integrated concepts: 1. A womans pelvis (the passage) is of adequate size and contour. 2. The passenger (the fetus) is of appropriate size and in an advantageous position and presentation. 3. The powers of labor (uterine factors) are adequate. (The powers of labor are strongly influenced by the womans position during labor.) 4. A womans psychological outlook (psyche) is preserved, so that afterward labor can be viewed as a positive experience. Passage The passage refers to the route a fetus must travel from the uterus through the cervix and vagina to the external perineum. Because the cervix and vagina are contained inside the pelvis, a fetus must also pass through the bony pelvic ring. Two pelvic measurements important to determine the adequacy of the pelvic size: the diagonal conjugate (the anteroposterior diameter of the inlet) and the transverse diameter of the outlet. At the pelvic inlet, the anteroposterior diameter is the narrowest diameter; at the outlet, the transverse diameter is the narrowest. Critical factors: o Size of maternal pelvis (diameters of the pelvic inlet,