ATI RN
ATI Gastrointestinal System
1. A client with liver dysfunction has low serum levels of thrombin. The nurse provides care, anticipating that this client is most at risk of
- A. Dehydration
- B. Malnutrition
- C. Bleeding
- D. Infection
Correct answer: C
Rationale: Thrombin is produced by the liver and is necessary for normal clotting. When a client with liver dysfunction has low serum levels of thrombin, they are at risk of bleeding due to impaired clotting mechanisms. Dehydration (choice A) is not directly related to low thrombin levels. Malnutrition (choice B) may impact overall health but is not the most immediate concern associated with low thrombin levels. Infection (choice D) is not directly related to the clotting function affected by low thrombin levels.
2. Mucosal barrier fortifiers are used in peptic ulcer disease management for which of the following indications?
- A. To inhibit mucus production
- B. To neutralize acid production
- C. To stimulate mucus production
- D. To stimulate hydrogen ion diffusion back into the mucosa
Correct answer: C
Rationale: Mucosal barrier fortifiers stimulate mucus production, which helps protect the lining of the stomach and manage peptic ulcer disease.
3. A nurse is giving dietary instructions to a client who has a new colostomy. The nurse encourages the client to eat foods representing which of the following diets for the first 4 to 6 weeks postoperatively?
- A. High-protein
- B. High-carbohydrate
- C. Low-calorie
- D. Low-residue
Correct answer: D
Rationale: For the first 4 to 6 weeks following colostomy formation, the client should take in a low-residue diet. Following this period, the client should eat a high-carbohydrate, high-protein diet. The nurse also instructs the client to add new foods, one at a time, to determine tolerance to that food.
4. A nurse has been caring for a client with a Sengstaken-Blakemore tube. The physician arrives on the nursing unit and deflates the esophageal balloon. The nurse should monitor the client most closely for which of the following?
- A. Swelling of the abdomen
- B. Bloody diarrhea
- C. Vomiting blood
- D. An elevated temperature and arise in blood pressure
Correct answer: C
Rationale: A Sengstaken-Blakemore tube is inserted into a client with a diagnosis of cirrhosis and ruptured esophageal varices. The tube has an esophageal and a gastric balloon. The esophageal balloon exerts pressure on the bleeding. The pressure of the esophageal balloon is released at intervals to decrease the risk of trauma to esophageal tissues, including esophageal rupture or necrosis. When the balloon is deflated the client may begin to bleed again from the esophageal varices, noted by vomiting of blood.
5. You have a patient with achalasia (incomplete muscle relaxation of the GI tract, especially sphincter muscles). Which medications do you anticipate to administer?
- A. Isosorbide dinitrate (Isordil)
- B. Digoxin (Lanoxin)
- C. Captopril (Capoten)
- D. Propanolol (Inderal)
Correct answer: A
Rationale: Isosorbide dinitrate (Isordil) is a medication used to relax the muscles of the GI tract in patients with achalasia.
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