<prompt> A pregnant women who is 7 weeks from her LMP comes in to the office for her first prenatal visit. Her previous pregnancy ended in a missed aboion in the first trimester. Which of the following modalities will allow you to best document fetal hea action?Regular stethoscopeFetoscopeFetal Doppler equipmentTransvaginal sonogram  <response>: Transvaginal sonogramTVS will be able to detect the fetal cardiac activity as early as 5 weeks of gestation. Sac Cardiac activity TVS 4 weeks 5 weeks TAS 5 weeks 6 weeks 12 weeks FHS heard with fetal doppler Regular stethoscope and fetoscope can detect fetal hea sounds by 20 to 24 weeks of gestation. 