There are no specific fetal surveillance tests for PT pregnancy
which are able to predict acute events (e.g., placental
abruption or cord complications). The most commonly used
tests are cardiotocography (CTG) non-stress test (NST),
amniotic fluid (AF) volume assessment wamniotic fluid index
(AFI) or deepest pocketx, fetal biophysical profile, US estimation
of fetal weight and Doppler studies on umbilical and
fetal vessels