This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'Pressure of normal uterine contractions is between 190-300. Units in terms of which units. \nSelect and explain. \nA. Montevideo units, B. Mm of Hg, C. Cm of water, D. Joules/kg', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 1 montevideo unit = Intensity of constraction x number of contractions in 10 mins.\nMontevideo unit is to define uterine activity.\nAs per this:\nClinical labour usually commences when uterine activity reaches values between 80-120 Montevideo units (This translates into approximate 3 contractions of 40 mm of Hg every 10 minutes).\nDuring labour – Normal uterine contractions are between 190 – 300 Montevideo units (At the time of delivery it is 300 Montevideo units)\nExtra Edge\n\nUerine contractions are clinically palpable only after their intensity exceeds > 10 mm of Hg\nUterine contractions are not associated with pain unless their intensity is > 15 mm of Hg.', 'role': 'assistant'}]