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What is the peak intensity of uterine contractions in a normal patient in spontaneous active labour?(a) 0 to 35 mm Hg(b) 50 to 75 mm Hg(c) 90 to 120 mm Hg(d) 120 to 150 mm HgThe question was posed to me in examination.My question comes from Ear Oximeter topic in portion Oximeters of Biomedical Instrumentation

Answer»

Right choice is (B) 50 to 75 mm Hg

For 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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