<s>[INST] MY HUSBAND DIED FROM MANY CONPLICATIONS, AND I AM TRYING TO GET CLOSURE. ACUTE KIDNEY FAILURE, WHICH HAPPENED FAST. THERE ARE MANY QUESTIONS THAT I HAVE. SOME ARE CHRONIC RESPIRTORY ACIDOSIS, MILD HYPERKALEMIA, LEFT PLEURAL EFFUSION, AND HYPOCALCEMIA. I THOUGHT HE DIED FROM BLADDER CANCER AND SPREAD TO HIS KIDNEYS. [/INST] HiSince the bladder cancer has spread to the kidney all the symptoms he is having is due to renal shutdown and he died of multiple organ failure.RegardsDr de </s>