ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
1. A healthcare professional is reviewing the medication list of a client who has a new prescription for Digoxin to treat heart failure. Which of the following medications places the client at risk for Digoxin toxicity?
- A. Spironolactone
- B. Calcium channel blockers
- C. Loop diuretics
- D. ACE inhibitors
Correct answer: C
Rationale: Loop diuretics, such as Furosemide, can increase the risk of Digoxin toxicity by causing hypokalemia. Hypokalemia enhances the toxic effects of Digoxin on the heart, leading to an increased risk of Digoxin toxicity. Spironolactone (Choice A) is less likely to cause hypokalemia and does not significantly increase the risk of Digoxin toxicity. Calcium channel blockers (Choice B) and ACE inhibitors (Choice D) do not directly increase the risk of Digoxin toxicity through hypokalemia; therefore, they are not the medications that place the client at risk for Digoxin toxicity.
2. When administering digoxin (Lanoxin) to a patient, the healthcare provider observes various signs and symptoms of an overdose. Which of the following should the healthcare provider give to reverse digoxin toxicity?
- A. Naloxone
- B. Vitamin K
- C. Digibind
- D. Flumazenil
Correct answer: C
Rationale: Digibind, also known as Digoxin immune Fab, is the specific antidote used to treat digoxin toxicity. It works by binding to digoxin in the body, forming a complex that can be excreted by the kidneys, thereby reversing the toxic effects of digoxin overdose. Naloxone is used for opioid overdoses, not digoxin toxicity. Vitamin K is used to reverse the effects of warfarin overdose. Flumazenil is used to reverse the effects of benzodiazepine overdose, not digoxin toxicity.
3. A client has a new prescription for Efavirenz, an NNRTI. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime to prevent drowsiness.
- B. Take this medication with a glass of milk.
- C. Take this medication with a glass of juice.
- D. Take this medication at the same time every day.
Correct answer: A
Rationale: The correct instruction is to take Efavirenz at bedtime to prevent drowsiness and manage central nervous system side effects like dizziness and vivid dreams. While it is important to take the medication at the same time daily for consistent blood levels, the emphasis should be on bedtime to minimize the impact of these side effects. Choices B and C suggesting taking the medication with milk or juice are incorrect and not relevant to optimizing Efavirenz therapy.
4. A healthcare professional is educating a client who has a new prescription for warfarin. Which of the following statements should the healthcare professional include?
- A. Avoid foods high in vitamin K.
- B. Report any signs of bleeding to your healthcare provider.
- C. Use a soft toothbrush to prevent gum bleeding.
- D. Use an electric razor to prevent cuts.
Correct answer: B
Rationale: The correct statement that the healthcare professional should include when educating a client prescribed warfarin is to report any signs of bleeding to their healthcare provider. Bleeding can indicate excessive anticoagulation, which is a serious side effect of warfarin. Prompt reporting of bleeding symptoms is crucial to prevent complications. Choices A, C, and D are incorrect. While avoiding foods high in vitamin K may be important when taking warfarin due to its interaction with the medication, it is not the priority over reporting signs of bleeding. Using a soft toothbrush and electric razor are general precautions for individuals on anticoagulants but are not as critical as reporting bleeding symptoms.
5. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, what advice should the nurse provide?
- A. Avoid using acetaminophen for headaches.
- B. Restrict intake of foods high in sodium.
- C. Decrease fluid intake to less than 1,500 mL daily.
- D. Limit aerobic activity in hot weather.
Correct answer: D
Rationale: The nurse should advise the client to limit aerobic activity in hot weather to prevent sodium/water depletion, which can increase the risk for Lithium toxicity. Excessive sweating and fluid loss can lead to dehydration and changes in lithium levels, potentially resulting in toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting sodium intake and decreasing fluid intake can lead to increased lithium levels and toxicity, so these are not recommended actions.
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