Dr. Nayar continues, "You don't want to miss any life-threatening diseases that can cause abdominal pain. Can you tell me four red flags from the history and physical exam that could suggest a life-threatening condition in a patient with abdominal or pelvic pain?"

Answer : Rigid abdomen, diarrhea, fever and weight loss.

Explanation:

Red Flag can be explained or described as signs and symptoms that can be found in either medical history of a patient or/and patient clinical examination, which may show or explain that a disorder is tie to a pathology. This means that, the signs may be a warning  of a potential serious disease.

Red flags are very important and should not be underestimated, meaning that ,they should be handled with all alertness and diligence, with the notion of solving, removing or stopping them in no time.