Unintentional Weight Loss in an Older Adult

Harold is a 78-year-old male presenting with unintentional 20-lb weight loss over 6 months with poor appetite and change in bowel habit. I'm 78 and I've lost about twenty pounds over the last six months without trying — my belt's gone in two notches. My appetite has dropped off and food doesn't appeal to me. Lately my bowels have changed: the stools are looser and thinner, and once or twice I've seen blood, though I didn't want to make a fuss. Your task is to take a focused history from this patient.