%0 Journal Article %T Valores normales de las alfa-fetoprote¨ªnas en embarazadas a las 24 y 28 semanas de gestaci¨®n %A Salazar de Dugarte %A Guillermina %A Faneite %A Pedro %A Pineda %A Francis %A Molina %A Francis %J Gaceta M¨¦dica de Caracas %D 2007 %I Scientific Electronic Library Online %X objective: to obtain the normal values of ¦Á-fetoprotein, between 24-28 weeks of pregnancy, to be use as levels of reference in the pregnancies with preterm delivery risk. method: longitudinal prospective study, non experimental, in 80 pregnant women attended between january to november 2005. alfa-fetoprotein was determined by the elisa technic. results: the ¦Á-fetoprotein mean values oscilated between 112 ng/ml at 24 weeks and 133 ng/ml at 28 weeks, and in the percentile distribution with ranges of 60 ng/ml in the percentile 10 and 200 ng/ml in the percentile 90 at the 24 weeks. at 28 weeks the range were 82 ng/ml in the percentile 10 and 230 ng/ml in the 90 percentile. conclusions: we have at one£¿s disposal ¦Á-fetoprotein values as a parameter to be used as pronostique in the high risk pregnancy of preterm delivery. %K -fetoprotein %K -fetoprotein in pregnancy %K -fetoprotein and preterm delivery %K prenatal diagnosis. %U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0367-47622007000300004&lng=en&nrm=iso&tlng=en