From bf62f94380c6332369061bf9c1cbefb4edf6b124 Mon Sep 17 00:00:00 2001
From: snlavaise <snlavaise@gmail.com>
Date: Tue, 11 Aug 2026 15:53:52 +0000
Subject: [PATCH] Fix laboratory parser regex capturing number from B12
 parameter name

---
 src/sections/HistoriaClinica.tsx | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/sections/HistoriaClinica.tsx b/src/sections/HistoriaClinica.tsx
index 77bc332..88ff37f 100644
--- a/src/sections/HistoriaClinica.tsx
+++ b/src/sections/HistoriaClinica.tsx
@@ -1092,6 +1092,7 @@ function SeccionLaboratorios({ lab, patientId, internacionId, add, update, del,
         if (resultados.some(r => r.parametro === group.nombre)) continue;
 
         let matchedClave = false;
+        let matchedClaveString = '';
         for (const clave of group.claves) {
           if (group.nombre === 'Colesterol Total' && clave === 'colesterol') {
             if (lineaLower.includes('ldl') || lineaLower.includes('hdl') || lineaLower.includes('no')) {
@@ -1105,13 +1106,24 @@ function SeccionLaboratorios({ lab, patientId, internacionId, add, update, del,
           }
           if (matchClave(lineaLower, clave)) {
             matchedClave = true;
+            matchedClaveString = clave;
             break;
           }
         }
 
         if (matchedClave) {
-          // Extraer primer valor numérico (soporta enteros y decimales con punto o coma)
-          const match = linea.match(/[a-zA-ZáéíóúñÁÉÍÓÚÑ]+.*?(\d+(?:[.,]\d+)?)/);
+          // Extraer la porción de texto posterior a la clave/nombre del parámetro para evitar capturar números dentro del nombre (ej: B12, T4)
+          let subLinea = linea;
+          const idxClave = lineaLower.indexOf(matchedClaveString);
+          if (idxClave !== -1) {
+            subLinea = linea.substring(idxClave + matchedClaveString.length);
+          }
+
+          let match = subLinea.match(/(\d+(?:[.,]\d+)?)/);
+          if (!match) {
+            match = linea.match(/[a-zA-ZáéíóúñÁÉÍÓÚÑ]+.*?(\d+(?:[.,]\d+)?)/);
+          }
+
           if (match && match[1]) {
             const valor = parseFloat(match[1].replace(',', '.'));
             if (!isNaN(valor) && valor > 0 && valor < 1000000) {