diff --git a/lib/api/api_consultas/study.ex b/lib/api/api_consultas/study.ex
index 252cd5c..eebe74f 100644
--- a/lib/api/api_consultas/study.ex
+++ b/lib/api/api_consultas/study.ex
@@ -65,7 +65,7 @@ defmodule Api.Study do
           proceduredescription: s.studydescription,
           studydate: fragment("TO_CHAR(?, 'YYYY-MM-DD')", s.studydate),
           studytime: fragment("TO_CHAR(?, 'HH24:MI:SS')", s.studytime),
-          accessionnumber: s.accessionnumber,
+          accessionnumber: s.idstudy,
           patientid: p.patientid
         }
     )
@@ -91,7 +91,7 @@ defmodule Api.Study do
           proceduredescription: s.studydescription,
           studydate: fragment("TO_CHAR(?, 'YYYY-MM-DD')", s.studydate),
           studytime: fragment("TO_CHAR(?, 'HH24:MI:SS')", s.studytime),
-          accessionnumber: s.accessionnumber,
+          accessionnumber: s.idstudy,
           patientid: p.patientid
         }
     )
@@ -117,7 +117,7 @@ defmodule Api.Study do
           proceduredescription: s.studydescription,
           studydate: fragment("TO_CHAR(?, 'YYYY-MM-DD')", s.studydate),
           studytime: fragment("TO_CHAR(?, 'HH24:MI:SS')", s.studytime),
-          accessionnumber: s.accessionnumber,
+          accessionnumber: s.idstudy,
           patientid: ""
         }
 
@@ -133,7 +133,7 @@ defmodule Api.Study do
           proceduredescription: s.studydescription,
           studydate: fragment("TO_CHAR(?, 'YYYY-MM-DD')", s.studydate),
           studytime: fragment("TO_CHAR(?, 'HH24:MI:SS')", s.studytime),
-          accessionnumber: s.accessionnumber,
+          accessionnumber: s.idstudy,
           patientid: ""
         }