diff --git a/app/routes/test_rda.py b/app/routes/test_rda.py
index 28c90d3..88ef5ce 100644
--- a/app/routes/test_rda.py
+++ b/app/routes/test_rda.py
@@ -82,7 +82,7 @@ async def get_candidatos(request: Request, user: dict = Depends(get_current_user
         return JSONResponse({"error": f"Error Firebird: {fb_msg}"})
 
     # Artículos configurados con especialidad en TNS
-    arts_default = "CH4,CREA,TGP,VSG,PCR,AU,FER,TPO,TSH,TGO,GLI,BUN,COL,TRI,HDL,LDL,HBA1,VB12,VITD,FER,K,NA,MG,URO,PRL,T4L,T3,T4,T3L,HIV,VDRL,PSA,AFP,CEA,CA125,CA199,FV,TP,TPT"
+    arts_default = "CH4,CREA,TGP,VSG,PCR,AU,FER,TPO,TSH,TGO,GLI,BUN,COL,TRI,HDL,LDL,HBA1,VB12,VITD,PO,K,NA,MG,URO,PRL,T4L,T3,T4,T3L,HIV,VDRL,PSA,AFP,CEA,CA125,CA199,FV,TP,TPT"
     arts_str = articulos.strip() if articulos.strip() else arts_default
     arts_list = [a.strip().upper() for a in arts_str.split(",") if a.strip()]
     arts_in = ", ".join(f"'{a}'" for a in arts_list)
@@ -91,7 +91,8 @@ async def get_candidatos(request: Request, user: dict = Depends(get_current_user
         "r.NUM_FACTURA > 0",
         "e.CODCONTRATO IS NOT NULL",
         "TRIM(e.CODCONTRATO) <> ''",
-        f"rel.COD_EXAMEN IN ({arts_in})",
+        # Solo registros donde TODOS los exámenes están en el listado permitido
+        f"NOT EXISTS (SELECT 1 FROM RELACION rx WHERE rx.IDRECEPCION = r.IDRECEPCION AND rx.COD_EXAMEN NOT IN ({arts_in}))",
     ]
     params = {}
     if contrato: