Estimation of cephalopelvic disproportion

The estimation method for the head basin is not to check whether the pelvic stenosis or the fetal head is too large or the pelvis is normal through the anus examination, but because the head of the fetus is too large, the birth can not pass through the birth canal. Basic Information Specialist classification: maternity inspection inspection classification: other inspection Applicable gender: whether women are fasting: not fasting Tips: Inappropriate people: women who are under-pregnancy. Normal value The fetal head is lower than the pubic symphysis plane, suggesting that the headless basin is not called, and it can be delivered naturally. Clinical significance Abnormal results: When the baby is not in the basin at the time of labor, there is a head basin that is not possible. The maternal head across the shame is unable to connect at the time of labor, and the fetal head is pushed to the pelvic cavity by the pregnant woman's abdomen. The fetal head cannot be lowered and the highest point is higher than the pubic symphysis plane. The suspected positive fetal head is parallel to the plane of the pubic symphysis. People who need to check: Women 2 weeks before the birth. Precautions Before the test: empty the bladder. When checking: Relax your body and actively cooperate with your doctor. Inspection process The pregnant woman takes the supine leg and the examiner places the hand on the pubic symphysis and pushes the floating fetal head toward the pelvic cavity. For pregnant women with positive cross-symptoms, the two legs should be flexed and half-bed, and the trans-shadow sign should be checked again. If it is negative, it indicates that the pelvic inclination is abnormal, not the head basin. Not suitable for the crowd Inappropriate people: women who are under-pregnancy.

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