ATI RN
Nutrition ATI Proctored Exam
1. Intrinsic factor from the stomach is needed for the absorption of which vitamin?
- A. vitamin B12
- B. folate
- C. niacin
- D. vitamin B6
Correct answer: A
Rationale: The correct answer is A: vitamin B12. Intrinsic factor is a glycoprotein produced by the stomach that is necessary for the absorption of vitamin B12 in the small intestine. Vitamin B12 binds to intrinsic factor in the stomach, forming a complex that is then absorbed in the ileum. This absorption process is crucial for preventing vitamin B12 deficiency. Choices B, C, and D are incorrect because they do not require intrinsic factor for absorption. Folate is absorbed in the small intestine through a different mechanism, niacin can be absorbed in the small intestine without the need for intrinsic factor, and vitamin B6 does not rely on intrinsic factor for absorption.
2. The nurse is reviewing the record of a client with Crohn’s disease. Which of the following stool characteristics would the nurse expect to note documented on the client’s record?
- A. Chronic constipation
- B. Diarrhea
- C. Constipation alternating with diarrhea
- D. Stool constantly oozing from the rectum
Correct answer: B
Rationale: Diarrhea is a common stool characteristic in clients with Crohn’s disease due to inflammation of the gastrointestinal tract.
3. A client who is 97 years old has successfully been treated for heart failure and is found not breathing. There is no DNR order in place. What should the nurse do?
- A. Notify the family and await further instructions.
- B. Initiate CPR and call for emergency assistance.
- C. Allow the family to make decisions about care.
- D. Follow the family's wishes and perform no interventions.
Correct answer: B
Rationale: In this scenario, with no DNR order in place and the client not breathing, the nurse should initiate CPR and call for emergency assistance. Option A is incorrect as immediate action is required in the absence of breathing. Option C is incorrect as the nurse should act promptly to provide life-saving measures. Option D is incorrect because the nurse's primary duty is to provide care in the absence of a directive preventing intervention.
4. A client with severe dyspnea is scheduled for multiple diagnostic tests. Which test should the nurse prioritize?
- A. Administer an echocardiogram first.
- B. Prioritize a chest x-ray for the client.
- C. Prepare the client for a CT scan.
- D. Order an MRI first.
Correct answer: B
Rationale: The correct answer is B: Prioritize a chest x-ray for the client. When a client presents with severe dyspnea, a chest x-ray should be prioritized as it helps in assessing the lungs and heart, which are crucial in cases of respiratory distress. Echocardiograms are more focused on assessing heart function and may not provide immediate information needed in cases of dyspnea. CT scans and MRIs are more detailed imaging studies that are not typically the first-line diagnostic tests for severe dyspnea.
5. A nurse is caring for a client who has a new prescription for levothyroxine. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?
- A. Calcium
- B. Sodium
- C. Thyroid-stimulating hormone (TSH)
- D. Magnesium
Correct answer: C
Rationale: The correct answer is C: Thyroid-stimulating hormone (TSH). Monitoring TSH levels is crucial to assess the effectiveness of levothyroxine in clients with hypothyroidism. TSH is produced by the pituitary gland and stimulates the thyroid gland to produce thyroid hormones. In hypothyroidism, where the thyroid gland is underactive, administering levothyroxine helps to normalize thyroid hormone levels. Monitoring TSH levels allows the healthcare provider to adjust the levothyroxine dosage to ensure that thyroid hormone levels are within the therapeutic range. Choices A, B, and D (Calcium, Sodium, and Magnesium) are not directly related to assessing the effectiveness of levothyroxine therapy in hypothyroidism and would not provide relevant information regarding the medication's efficacy.