Kozier & Erb's Fundamentals of Nursing 10th Edition by Shirlee Snyder,Audrey Berman,Geralyn Frandsen

Exercise 2

W. is a 63-year-old recently retired engineer with a history of irritable bowel syndrome that causes frequent diarrhea and rectal bleeding. His wife is a schoolteacher. In mid-December he comes to the acute care clinic complaining about "not feeling good." You conclude he is having a recurrence of his intestinal problem.
How would you demonstrate that you are using the critical thinking attitude of "confidence in reasoning"?