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What is intrauterine pressure during the expulsion period?(a) 130 mm Hg(b) 140 mm Hg(c) 150 mm Hg(d) 160 mm HgThe question was asked in an online quiz.This intriguing question comes from Ear Oximeter in portion Oximeters of Biomedical Instrumentation

Answer»

The correct choice is (c) 150 MM Hg

The explanation: During labour, the uterus muscle starts contractions of increasing intensity in a bid to expel out the child. The intrauterine pressure can REACH VALUES of 150 mmHg or more during the expulsion period. However, a NORMAL patient in spontaneous active labour will demonstrate uterine contractions occurring at intervals of three to five minutes, with a duration of 30 to 70 s and a PEAK intensity of 50 to 75 mmHg.



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