Uterine contractions are clinically palpable when their intensity is more than :: (A) 10 mm of Hg, (B) 15 mm of Hg, (C) 20 mm of Hg, (D) 40 mm of Hg
Answer is A. The intensity of uterine contractions describes the degree of uterine systole. During pregnancy uterus is quiescent, the tone is 2-3mmHg. During the first stage of labor it varies from 8-10 mmHg, it is inversely propoional to relaxation. D.C.DUTTA'S TEXTBOOK OF OBSTETRICS,pg no:117,7th edition