ATI RN
ATI Nutrition Practice Test A 2019
1. Which of the following is reflected in an ECG due to hypokalemia?
- A. Tall T waves and Pathologic Q wave
- B. Widening QRS Complex and U wave
- C. None of the above
- D. Both A and B
Correct answer: B
Rationale: Hypokalemia, a condition characterized by low levels of potassium in the blood, is reflected in an ECG by a widening QRS Complex and a U wave. This is because potassium plays a key role in the electrical activity of the heart, and its deficiency can lead to abnormalities in the heart's rhythm as represented by these specific changes on the ECG. Choice A is incorrect as tall T waves and pathologic Q waves are more commonly associated with hyperkalemia or myocardial infarction, respectively, rather than hypokalemia. Choices C and D are also incorrect as they do not accurately reflect the ECG changes caused by hypokalemia.
2. A caregiver is caring for a 5-month-old infant who has manifestations of severe dehydration and a prescription for parenteral fluid therapy. The caregiver asks, 'What are the indications that my baby needs an IV?' Which of the following responses should the caregiver make?
- A. Your baby needs an IV because she is not producing any tears
- B. Your baby needs an IV because her fontanels are bulging
- C. Your baby needs an IV because she is breathing slower than normal
- D. Your baby needs an IV because her heart rate is decreasing
Correct answer: Your baby needs an IV because she is not producing any tears
Rationale: The correct response is A: 'Your baby needs an IV because she is not producing any tears.' In infants, the inability to produce tears is a sign of severe dehydration. This is a crucial indication for the need for intravenous (IV) fluid therapy to rehydrate the infant. While the other options may also be symptoms of dehydration, the absence of tears is a more direct and specific indicator requiring immediate attention and intervention.
3. A nurse is preparing to administer dopamine hydrochloride 4 mcg/kg/min via continuous infusion. The client weighs 80 kg. How many mL/hr should the nurse set the IV infusion to deliver?
- A. 6 mL/hr
- B. 8 mL/hr
- C. 12 mL/hr
- D. 16 mL/hr
Correct answer: A
Rationale: To calculate the correct rate, use the formula: (4 mcg/kg/min * 80 kg) / 800 mcg in 250 mL = 6 mL/hr. This calculation is based on the dose ordered (4 mcg/kg/min) multiplied by the patient's weight in kg (80 kg), divided by the concentration of the drug available (800 mcg in 250 mL) to be infused over 1 hour. Therefore, the correct answer is 6 mL/hr. Choices B, C, and D are incorrect as they do not reflect the accurate calculation based on the provided information.
4. When is aspirin most effective when taken?
- A. On an empty stomach with cold water
- B. On a full stomach after a meal
- C. With a glass of fruit juice
- D. First thing in the morning
Correct answer: A
Rationale: Aspirin is best absorbed on an empty stomach to maximize its effectiveness. Taking it with cold water helps in its quick absorption. Option B is incorrect because taking aspirin on a full stomach can delay its absorption. Option C is incorrect as fruit juice may not provide the ideal conditions for absorption. Option D is incorrect as taking aspirin first thing in the morning may not ensure an empty stomach.
5. Which of the following indicators is viewed as important by the nurse manager in relation to a performance model?
- A. Patient outcomes
- B. Rapport with staff
- C. Daily job performance
- D. Flexibility
Correct answer: A
Rationale: The correct answer is A: Patient outcomes. In a performance model, one of the key indicators that a nurse manager would focus on is patient outcomes. Patient outcomes are a direct reflection of the quality of care provided by the staff, making it a crucial aspect of evaluating performance. Choice B, rapport with staff, though important for team dynamics, is not directly related to a performance model that primarily assesses job performance. Choice C, daily job performance, is relevant but more of an outcome rather than an indicator itself. Choice D, flexibility, is a valuable trait but not specifically highlighted in the context of a performance model.