When conducting a physical examination, the nurse is assessing a client's abdomen and identifies a centrally localized distention that is pulsating. This finding should direct the nurse to consider which pathology?

A. A hernia may present as a bulge in the abdomen, but it is not typically pulsating. It is usually a soft, non-pulsatile mass. B. A pulsating centrally localized abdominal distention is characteristic of an abdominal aneurysm, which occurs when the wall of the aorta weakens and bulges. The pulsation is often palpable and can be dangerous if ruptured. C. Tympany refers to a sound produced during percussion, which is typically heard over air-filled structures like the stomach, but it doesn’t cause pulsating distention. D. Appendicitis typically presents with localized pain in the lower right abdomen and is not associated with pulsating abdominal distention.