RESUMEN
The search for an acute fetal distress during labor remains one of the objectives of obstetrical surveillance. To find a relationship between different aspects of fetal heart rate [FHR] occurring during labor, Apgar score at first minute and the pH blood at birth. A prospective study which involved 170 single-fetal pregnancies to term. In our population, by comparing the APGAR score in the first minute and umbilical pH, it was found that only 25.7% of newborns with Apgar at 1st minute less than 7 had an umbilical arterial pH <7.15. Thus in our study, the Apgar score did not predict umbilical acidosis and the difference was significant [p = 0.02]. In the same population, by comparing the analysis of FCR and umbilical PH, we found that fetal bradycardia was associated with pH umbilical lowest with an average of 7008 and the difference was significant [p = 0.008]. Other types of ERCF were also significantly associated with neonatal acidosis. Recording fetal heart rate is a limited review to assess the exact condition of the fetus. It has a good negative predictive value but there is little specific consideration. Combination with other techniques to better assess the fetal state