diff --git a/app/routes/debug_fb.py b/app/routes/debug_fb.py
index 62c5af0..af5af69 100644
--- a/app/routes/debug_fb.py
+++ b/app/routes/debug_fb.py
@@ -21,14 +21,23 @@ async def find_cups(request: Request, user: dict = Depends(get_current_user)):
 
         results = {}
 
-        ok1, err1, rows1 = fb.execute_query(
-            "SELECT FIRST 3 rh.* FROM RELACION_HIMS rh "
-            "WHERE rh.CUPS_REF IS NOT NULL AND TRIM(rh.CUPS_REF)<>''"
+        # 1. Buscar todas las tablas que tengan campo con "CUP" en nombre
+        ok0, _, rows0 = fb.execute_query(
+            "SELECT TRIM(f.RDB$RELATION_NAME) AS t, TRIM(f.RDB$FIELD_NAME) AS c "
+            "FROM RDB$RELATION_FIELDS f WHERE f.RDB$FIELD_NAME LIKE '%CUP%' "
+            "AND f.RDB$SYSTEM_FLAG = 0 ORDER BY 1,2"
         )
-        results["relacion_hims_cups"] = list(rows1) if ok1 else f"error: {err1}"
+        results["todos_campos_cup"] = list(rows0) if ok0 else []
 
-        ok2, err2, rows2 = fb.execute_query("SELECT FIRST 1 rh.* FROM RELACION_HIMS rh")
-        results["relacion_hims_fila"] = rows2[0] if (ok2 and rows2) else f"error: {err2}"
+        # 2. Tabla PROTOCOLO - primera fila
+        ok1, err1, rows1 = fb.execute_query("SELECT FIRST 1 p.* FROM PROTOCOLO p")
+        results["protocolo_fila"] = rows1[0] if (ok1 and rows1) else f"error: {err1}"
+
+        # 3. PROTOCOLO para CH4
+        ok2, err2, rows2 = fb.execute_query(
+            "SELECT FIRST 1 p.* FROM PROTOCOLO p WHERE TRIM(p.CODIGO) = 'CH4'"
+        )
+        results["protocolo_ch4"] = rows2[0] if (ok2 and rows2) else f"error: {err2}"
 
         fb.disconnect()
         return JSONResponse(results)