ATI RN
ATI Gastrointestinal System
1. The nurse is caring for a client with cirrhosis. Which manifestations indicate deficient vitamin K absorption caused by this liver disease?
- A. Dyspnea and fatigue
- B. Ascites and orthopnea
- C. Purpura and petechiae
- D. Gynecomastia and testicular atrophy
Correct answer: C
Rationale: A liver disorder, such as cirrhosis, can disrupt the liver's normal use of vitamin K to produce prothrombin (a clotting factor). Because of this, the nurse should monitor the client for signs of bleeding, including purpura and petechiae. Dyspnea and fatigue suggest anemia. Ascites and orthopnea are unrelated to vitamin K absorption. Gynecomastia and testicular atrophy result from decreased estrogen metabolism by the diseased liver.
2. Radiation therapy is used to treat colon cancer before surgery for which of the following reasons?
- A. Reducing the size of the tumor
- B. Eliminating the malignant cells
- C. Curing the cancer
- D. Helping the bowel heal after surgery
Correct answer: A
Rationale: Radiation therapy is used before surgery to reduce the size of the tumor, making it easier to remove.
3. When teaching an elderly client how to prevent constipation, which of the following instructions should the nurse include?
- A. Drink 6 glasses of fluid each day.
- B. Avoid grain products and nuts.
- C. Add at least 4 grams of brain to your cereal each morning.
- D. Be sure to get regular exercise.
Correct answer: D
Rationale: To prevent constipation, elderly clients should be encouraged to get regular exercise, which promotes bowel motility.
4. A client with liver dysfunction is having difficulty with protein metabolism. The nurse anticipates that the results of which of the following serum laboratory studies will be elevated?
- A. Lactic acid
- B. Ammonia
- C. Albumin
- D. Lactase
Correct answer: B
Rationale: During deamination of proteins, the liver splits the amino group from the carbon-containing compound, which results in the formation of ammonia and a carbon residue. The liver then converts the toxic ammonia substance into urea, which can be excreted by the kidneys. Clients with liver dysfunction may have high serum ammonia levels as a result.
5. A home care nurse is visiting a client with a diagnosis of pernicious anemia that developed as a result of gastric surgery. The nurse instructs the client that because the stomach lining produces a decreased amount of intrinsic factor in this disorder, the client will need
- A. Vitamin B12 injections.
- B. Vitamin B6 injections.
- C. An antibiotic.
- D. An antacid.
Correct answer: A
Rationale: A lack of the intrinsic factor needed to absorb vitamin B12 occurs in pernicious anemia. Vitamin B12 is needed for the maturation of red blood cells. Vitamin B6 is not necessarily needed for pernicious anemia and can be taken orally. An antibiotic and antacids may be prescribed for certain types of gastric ulcers.
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