Acollege student presents to the health care clinic with reports of no bowel movement for 4 days, bloating, and generalized abdominal discomfort. she states that she has not been eating and drinking correctly and is stressed because she has a final exam in 2 days. a nurse assesses the abdomen and finds positive bowel sounds in all four quadrants and tenderness in the left lower quadrant with a few small, round, firm masses. the rovsing's sign and psoas sign are negative. what nursing diagnosis can the nurse confirm for this client?