This is the relationship between the presenting part of the baby - TopicsExpress



          

This is the relationship between the presenting part of the baby -- the head, shoulder, buttocks, or feet -- and two parts of the mothers pelvis called the ischial spines. Normally the ischial spines are the narrowest part of the pelvis. They are a natural measuring point for the delivery progress. If the presenting part lies above the ischial spines, the station is reported as a negative number from -1 to -5 (each number is a centimeter). If the presenting part lies below the ischial spines, the station is reported as a positive number from +1 to +5. The baby is said to be engaged in the pelvis when it is even with the ischial spines at 0 station.
Posted on: Fri, 17 Jan 2014 02:47:43 +0000

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