Decelerations involve a drop in FHR by ... There are three main types of external fetal heart monitors: Fetoscope: This is the least sophisticated option. A fetoscope is an instrument similar ...
In addition, prolonged deceleration occurred in 100% (n = 36/36) of the FHR tracings in which total fetal extrusion occurred. If more than one type of periodic deceleration, in addition to a ...