Fetal distress is an alteration of the fetus maternal exchange with disorder in the metabolism due to complications of high-risk pregnancies that affect the well-being of the fetus, Evaluation by Doppler echography and amniotic fluid index can help us to diagnose fetal distress; the Objective of the research was to analyze the Brain placenta index and amniotic fluid index in high-risk pregnancies as a predictor of low Apgar; We investigated pregnant women who attended the hospital Alfredo G Paulson performing Doppler ultrasounds, the result when evaluating the pathologies of high Risk comparing ALI with Apgar was (p.208) and BPI with Apgar was (p.064) which indicates that there are differences so we came to the conclusion that they do not predict if the fetus at the time of birth would present Apgar bass.