Gastrointestinal System Nursing Exam Questions

Correct Answer: B

Rationale: As peristalsis returns following creation of a colostomy, the client begins to pass malodorous flatus. This indicates returning bowel function and is an expected event. Within 72 hours of surgery, the client should begin passing stool via the colostomy.

Correct Answer: B

Rationale: The presence of pulsation between the umbilicus and pubis could indicate an abdominal aortic aneurysm, which is a serious condition and should be reported to the physician promptly. A concave, midline umbilicus is a normal finding. Bowel sound frequency can vary widely and is not a cause for concern at 15 sounds per minute. Absence of a bruit is a normal finding in an abdominal assessment and does not require reporting.

Correct Answer: A

Rationale: The initial way to determine if a nasogastric tube is in the stomach is to apply suction to the tube with a syringe and observe for the return of stomach contents. Then the pH of the aspirate can be measured. This is the method of choice. One would not irrigate until tube placement is confirmed. Observing for air bubbles when the free end of the tube is placed under water is an unacceptable, unsafe method of determining tube placement. Another method is to instill air into the tube with a syringe while auscultating over the epigastric area. Hearing the air enter the stomach helps ensure proper placement, but the method is not foolproof and is no longer considered an effective or preferred way to determine placement.

Correct Answer: B

Rationale: Serosanguineous drainage with a small amount of bile is expected from the Penrose drain for the first 24 hours. Drainage then decreases, and the drain is removed usually within 48 hours. The nurse does not need to notify the physician. A sterile dressing covers the site and should be changed to prevent infection and skin excoriation.

Correct Answer: B

Rationale: Impaired skin integrity would be the priority nursing diagnosis for daily care of the colostomy because the effluent from the colostomy can be irritating to the skin. Diarrhea isn't a concern at this point. The client will be allowed nothing by mouth until peristalsis returns. The client should get out of bed on the first postoperative day, so mobility shouldn't be a problem.