Pope Francis remained in critical condition Sunday and blood tests showed early kidney failure but he remains alert, responsive and attended Mass, the Vatican said, as the 88-year-old pontiff battles pneumonia and a complex lung infection. In a late update, the Vatican said Francis hadn’t had any more respiratory crises since Saturday night but was still receiving high flows of supplemental oxygen. Some blood tests showed “initial, mild, kidney failure,” but doctors said it was under control. “The complexity of the clinical picture, and the necessary wait for drug therapies to provide some feedback, dictate that the prognosis remains guarded,” Francis' doctors concluded. MORE: https://www.wthr.com/article/news/nation-world/pope-francis-critical-condition-health-update/507-998c9dd9-3d67-4e7a-bd4a-a1c708f3c000