Answer by
ToralDwivedi (606)
Fetal Heart Sounds [FHS] become audible only after fetal heart starts functioning in the second trimester of pregnancy. Fetal Heart Sounds are audible only after 3 months of pregnancy - somewhere in 4th or 5th month of successful gestation. If fetus is in LOA position, fetoscope should be placed on fetal spine on right side. Normal Fetal Rate 120/minute.