ATI RN
ATI Proctored Nutrition Exam
1. Risk factors that have been shown to contribute to age-related macular degeneration include _____.
- A. oxidative stress from sunlight
- B. iron-deficiency anemia
- C. decreased intake of phytochemicals
- D. vitamin B6 malabsorption
Correct answer: A
Rationale: The correct answer is A: oxidative stress from sunlight. Oxidative stress caused by exposure to sunlight is a significant risk factor for age-related macular degeneration. This condition can result in vision loss among older individuals. Choices B, C, and D are incorrect. Iron-deficiency anemia, decreased intake of phytochemicals, and vitamin B6 malabsorption are not established risk factors for age-related macular degeneration.
2. Which electrolyte imbalance is a potential side effect of diuretics?
- A. Hyperkalemia
- B. Hypercalcemia
- C. Hypomagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The correct answer is D, Hypokalemia. Diuretics commonly cause hypokalemia due to increased urinary excretion of potassium. Hyperkalemia (Choice A) is the opposite, characterized by high potassium levels and is not typically associated with diuretics. Hypercalcemia (Choice B) is an elevated calcium level, which is not a common side effect of diuretics. Hypomagnesemia (Choice C) is low magnesium levels, which can be a side effect of diuretics, but the most common electrolyte imbalance associated with diuretics is hypokalemia.
3. When administering enoxaparin (Lovenox) to a client for DVT prophylaxis, what is the most important lab value to monitor?
- A. Platelet count
- B. PT/INR
- C. aPTT
- D. Hemoglobin
Correct answer: A
Rationale: The correct answer is A: Platelet count. When administering enoxaparin (Lovenox) for DVT prophylaxis, it is crucial to monitor the platelet count as enoxaparin can lead to thrombocytopenia, a decrease in platelet levels. Monitoring the platelet count helps in early detection of this potential adverse effect. Choices B, C, and D are incorrect because PT/INR, aPTT, and hemoglobin levels are not the most important lab values to monitor specifically for enoxaparin administration and DVT prophylaxis.
4. A distraught, single, first-time mother cries and asks a nurse, 'How can I go to work if I can't afford childcare?' What is the nurse's initial action in assisting the client with the problem-solving process?
- A. Determine the risks and benefits of each alternative.
- B. Formulate goals for resolving the problem.
- C. Evaluate the outcome of the implemented solution.
- D. Assess the facts of the situation.
Correct answer: D
Rationale: In this scenario, the nurse's first step should be to assess the facts of the situation. By gathering accurate information about the client's circumstances related to childcare and work, the nurse can better understand the client's needs and concerns, which is essential before proceeding with any problem-solving process. Choice A is incorrect because assessing risks and benefits comes later in the problem-solving process. Choice B is incorrect as formulating goals should follow a thorough assessment. Choice C is incorrect since evaluating outcomes happens after implementing a solution, which is premature at this stage.
5. Macular degeneration occurs as a result of:
- A. loss of lens accommodation
- B. detachment of the retina
- C. increased intraocular pressure
- D. impaired blood supply leading to cellular waste accumulation and ischemia
Correct answer: impaired blood supply leading to cellular waste accumulation and ischemia
Rationale: Macular degeneration is a condition that affects the macula, a part of the retina responsible for central vision. It is primarily caused by impaired blood supply to the macula, leading to cellular waste accumulation and ischemia. This results in the death of photoreceptor cells and ultimately vision loss. Choices A, B, and C are incorrect because macular degeneration is not related to the loss of lens accommodation, detachment of the retina, or increased intraocular pressure. The correct answer directly addresses the underlying pathophysiology of macular degeneration.