Early date for detection of fetal hea :: (A) 6.0-6.5 weeks, (B) 6.5-7 weeks, (C) 7.1-7.5 weeks, (D) 8 weeks
Answer is A. 1st Trimester Scan: Assessment of Early Pregnancy and Fetal Viability: Gestational sac - 4.5 weeks, Yolk sac- 5 weeks, Fetal node- 6 weeks, Fetal hea- 6 weeks Reference: Dutta's Textbook of Obstetrics 7th edition page no 68