In "obsetrics ultra sound" commonly employed range of frequency is:-: (A) 3.5-5 MHz (Megahez), (B) 5 - 7.5 MHz, (C) 1 - 2.5 MHz, (D) 8 - 10 MHz
Answer is A. Commonly employed range of frequency in obsetrics ultra sound - 3.5-5 Mega Hz ( Trans abdominal scan) Obstetrical USG Range of Frequency Trans abdominal scan (TAS) using convex probe 3.5 - 5 Mega Hz Trnsvaginal scan (TVS) using TVS probe 5 - 6.5 Mega Hz