What is the duration of uterine contractions in a normal patient in spontaneous active labour?(a) 0 to 30 s(b) 30 to 70 s(c) 80 to 100 s(d) 110 to 150 sThe question was asked by my college professor while I was bunking the class.The query is from Ear Oximeter topic in division Oximeters of Biomedical Instrumentation

What is the duration of uterine contractions in a normal patient in sp

1.	What is the duration of uterine contractions in a normal patient in spontaneous active labour?(a) 0 to 30 s(b) 30 to 70 s(c) 80 to 100 s(d) 110 to 150 sThe question was asked by my college professor while I was bunking the class.The query is from Ear Oximeter topic in division Oximeters of Biomedical Instrumentation
Answer» The correct choice is (b) 30 to 70 s Easiest 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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