ATI RN
ATI Pharmacology
1. A healthcare provider in a clinic is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: Potassium 3.4 mEq/L is below the expected reference range, which increases the risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, particularly in older clients taking Digoxin. Hypokalemia potentiates the effects of Digoxin, making the heart more sensitive to its toxic effects. Monitoring and correcting electrolyte imbalances, especially low potassium levels, are crucial to prevent adverse effects of digoxin therapy. Calcium levels do not directly influence digoxin toxicity, so choices A and B are incorrect. High potassium levels, as in choice D, are less likely to increase the risk of digoxin toxicity compared to low potassium levels.
2. When teaching a client with a new prescription for Ipratropium, which of the following instructions should the nurse include?
- A. This medication can be used as a rescue inhaler.
- B. This medication should be taken before albuterol.
- C. Wait 5 minutes between medications if two inhaled medications are prescribed.
- D. Ipratropium can be used before exercise.
Correct answer: C
Rationale: When two inhaled medications are prescribed, waiting 5 minutes between medications allows for optimal absorption and effectiveness of each medication. This ensures that each medication can work properly without interference from the other, improving the client's respiratory condition.
3. A client has a new prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take the medication in the morning.
- B. Increase your intake of potassium-rich foods.
- C. Expect decreased urination within the first few days.
- D. Avoid foods high in potassium.
Correct answer: B
Rationale: The correct answer is B: 'Increase your intake of potassium-rich foods.' Hydrochlorothiazide is a diuretic that can lead to hypokalemia by increasing potassium excretion. Therefore, instructing the client to increase their intake of potassium-rich foods is essential to prevent electrolyte imbalances and support overall health. Choices A, C, and D are incorrect. Instructing the client to take the medication in the morning is not directly related to the medication's mechanism of action. Expecting decreased urination within the first few days is not accurate as the medication is a diuretic that typically increases urination. Also, advising the client to avoid foods high in potassium would not be suitable, as increasing potassium-rich foods is necessary to counteract potential potassium depletion caused by Hydrochlorothiazide.
4. A healthcare professional is planning to administer Morphine IV to a postoperative client. Which of the following actions should the healthcare professional take?
- A. Monitor for seizures and confusion with repeated doses.
- B. Protect the client's skin from severe diarrhea that occurs with morphine.
- C. Withhold this medication if the respiratory rate is less than 12/min.
- D. Administer Morphine intermittently via IV bolus over 30 seconds or less.
Correct answer: C
Rationale: The correct action the healthcare professional should take when administering Morphine IV to a postoperative client is to withhold the medication if the respiratory rate is less than 12/min. Respiratory depression is a common adverse effect of opioids like Morphine. Administering opioids when the respiratory rate is already compromised can further depress breathing, leading to life-threatening complications. Monitoring for seizures and confusion (Choice A) is not directly related to Morphine administration. Protecting the client's skin from severe diarrhea (Choice B) is not a common side effect of morphine. Administering Morphine via IV bolus (Choice D) should be done carefully but is not the most critical action in this scenario.
5. A client has a new prescription for Warfarin. Which of the following statements by the client indicates a need for further teaching?
- A. I will avoid eating large amounts of green leafy vegetables.
- B. I will take my medication at the same time every day.
- C. I will increase my intake of foods high in potassium.
- D. I will report any signs of bleeding to my provider.
Correct answer: C
Rationale: The correct answer is C because Warfarin interacts with vitamin K, not potassium. Therefore, the client needs to be cautious with foods high in vitamin K, such as green leafy vegetables, rather than foods high in potassium. Choices A, B, and D are correct statements regarding Warfarin therapy and do not indicate a need for further teaching.
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