ANATOMY
PELVIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blocks the free movement of the sacrum
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It generates adduction of the elbows
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Promotes the increase in the lower diameter of the pelvis
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May increase chance of episiotomy
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Facilitates the passage of the baby through the birth canal
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Detailed explanation-1: -One study found that the lithotomy position increased the likelihood of needing an episiotomy. This involves cutting the tissue between the vagina and anus, also called the perineum, making it easier for the baby to pass through. A 2012 study similarly found a higher risk of perineal tears in the lithotomy position.
Detailed explanation-2: -Lithotomy and supine position should be avoided for the possible increased risk of severe perineal trauma, comparatively longer labor, greater pain, and more fetal heart rate patterns.
Detailed explanation-3: -Massaging the perineum in the last few weeks of pregnancy can reduce the chances of having an episiotomy during birth. The type and frequency of massage varies across research studies. Most involve inserting 1 or 2 fingers into the vagina and applying downward or sweeping pressure towards the perineum.
Detailed explanation-4: -Lithotomy. This position involves lying on your back with your legs in stirrups. This position is necessary for forceps or vacuum assisted delivery, in the event of an episiotomy, or during the delivery of a breech baby (baby who is not head first).
Detailed explanation-5: -Birthing in the side-lying position has been shown to reduce perineal tearing by allowing the presenting part to descend more slowly (Shorten, Donsante, & Shorten, 2002).