Maternity Nursing Q 89

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When the fetal head is at the level of the ischial spine, it is said that the station of the head is

  

     A. Station –1

     B. Station “0”

     C. Station +1

     D. Station +2

    

    

Correct Answer: B. Station “0”

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Determining is defined as the relationship of the fetal head and the level of the ischial spine. At the level of the ischial spine, the station is “0”. Above the ischial spine it is considered (-) station and below the ischial spine it is (+) station.

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Option A: By 6 cm of dilation, the median station was 0 (95% CI ?2 to 1) for nulliparous and ?1 (95% CI ?3 to 0) for multiparous women. At 8 cm, 95% of nulliparous women were at ?1 station or lower.

Option C: The fetal head is already engaged in station +1. The difference between numbers in the score is equivalent to the length in centimeters. Moving from +1 to +2 is a movement of about 1 centimeter.

Option D: +2 to +3 station is crowning and beginning to emerge from the birth canal.

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