diff --git a/app/routes/debug_fb.py b/app/routes/debug_fb.py
index 43288bb..27bff97 100644
--- a/app/routes/debug_fb.py
+++ b/app/routes/debug_fb.py
@@ -23,56 +23,38 @@ async def find_cups(request: Request, user: dict = Depends(get_current_user)):
 
     results = {}
 
-    # 1. Tablas/campos que contengan "CUP" en el nombre
-    ok1, _, rows1 = fb.execute_query("""
-        SELECT DISTINCT TRIM(f.RDB$RELATION_NAME) AS tabla, TRIM(f.RDB$FIELD_NAME) AS campo
-        FROM RDB$RELATION_FIELDS f
-        WHERE f.RDB$FIELD_NAME CONTAINING 'CUP'
-        ORDER BY 1, 2
-    """)
-    results["campos_cup"] = rows1 if ok1 else []
-
-    # 2. Columnas de la tabla ARTICULO
-    ok2, _, rows2 = fb.execute_query("""
+    # 1. Columnas de ARTICULO
+    ok1, err1, rows1 = fb.execute_query("""
         SELECT TRIM(f.RDB$FIELD_NAME) AS campo
         FROM RDB$RELATION_FIELDS f
-        WHERE f.RDB$RELATION_NAME = 'ARTICULO'
+        WHERE TRIM(f.RDB$RELATION_NAME) = 'ARTICULO'
         ORDER BY f.RDB$FIELD_POSITION
     """)
-    results["columnas_articulo"] = [r["campo"] for r in rows2] if ok2 else "no existe"
+    results["columnas_articulo"] = [r["campo"] for r in rows1] if ok1 else f"error: {err1}"
 
-    # 3. Columnas de la tabla EXAMEN (si existe)
-    ok3, _, rows3 = fb.execute_query("""
-        SELECT TRIM(f.RDB$FIELD_NAME) AS campo
-        FROM RDB$RELATION_FIELDS f
-        WHERE f.RDB$RELATION_NAME = 'EXAMEN'
-        ORDER BY f.RDB$FIELD_POSITION
-    """)
-    results["columnas_examen"] = [r["campo"] for r in rows3] if ok3 else "no existe"
-
-    # 4. Muestra de ARTICULO con el primer examen de RELACION
-    ok4, _, rows4 = fb.execute_query("""
-        SELECT FIRST 1 rel.COD_EXAMEN FROM RELACION rel WHERE rel.COD_EXAMEN IS NOT NULL
-    """)
-    if ok4 and rows4:
-        cod = rows4[0]["COD_EXAMEN"]
-        ok5, _, rows5 = fb.execute_query(
-            "SELECT FIRST 1 a.* FROM ARTICULO a WHERE a.CODIGO = :cod",
-            {"cod": cod}
+    # 2. Primer examen de RELACION y sus datos en ARTICULO
+    ok2, _, rows2 = fb.execute_query(
+        "SELECT FIRST 1 rel.COD_EXAMEN FROM RELACION rel WHERE rel.COD_EXAMEN IS NOT NULL"
+    )
+    if ok2 and rows2:
+        cod = rows2[0]["COD_EXAMEN"]
+        results["cod_examen_ejemplo"] = cod
+        ok3, err3, rows3 = fb.execute_query(
+            "SELECT FIRST 1 a.* FROM ARTICULO a WHERE TRIM(a.CODIGO) = :cod",
+            {"cod": str(cod).strip()}
         )
-        results["muestra_articulo"] = rows5[0] if (ok5 and rows5) else "sin datos"
-        results["cod_examen_muestra"] = cod
+        results["articulo_ejemplo"] = rows3[0] if (ok3 and rows3) else f"error: {err3}"
 
-    # 5. Verificar si hay descuentos en RELACION
-    ok6, _, rows6 = fb.execute_query("""
-        SELECT FIRST 10
+    # 3. Descuentos en RELACION
+    ok4, _, rows4 = fb.execute_query("""
+        SELECT FIRST 5
             r.NUM_FACTURA, r.PREFIJO, rel.COD_EXAMEN, rel.DESCUENTO, rel.PRECIO
         FROM RELACION rel
         JOIN RECEPCION r ON r.IDRECEPCION = rel.IDRECEPCION
-        WHERE rel.DESCUENTO IS NOT NULL AND rel.DESCUENTO > 0
+        WHERE rel.DESCUENTO > 0
         ORDER BY r.FECHA_RECEPCION DESC
     """)
-    results["servicios_con_descuento"] = rows6 if ok6 else []
+    results["servicios_con_descuento"] = rows4 if ok4 else []
 
     fb.disconnect()
     return JSONResponse(results)