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. A nurse in a clinic is caring for a group of clients. The nurse should contact the provider about a potential contraindication to a medication for which of the following clients? (Select all that apply.)
- A. A client at 8 weeks of gestation who asks for an Influenza immunization
- B. A client who takes Prednisone and has a possible Fungal infection
- C. A client who has chronic liver disease and is taking Hydrocodone
- D. A client who has Peptic Ulcer Disease, takes Sucralfate, and tells the nurse she has started taking OTC Aluminum Hydroxide
Correct answer: B
Rationale: Prednisone, a glucocorticoid, should not be taken by a client who has a possible systemic fungal infection as it can worsen the infection. This combination can suppress the immune response, allowing the fungal infection to proliferate. Therefore, the nurse should contact the provider regarding this potential contraindication to medication. The other options do not present a contraindication related to the medication interactions described in the question.
3. The healthcare professional is preparing to administer atenolol (Tenormin) to a client with angina. Which vital sign would cause the healthcare professional to question administering this drug?
- A. Respirations 12 breaths per minute
- B. Pulse 52 beats per minute
- C. Blood pressure 134/72
- D. Oxygen saturation 95%
Correct answer: B
Rationale: Atenolol is a beta-blocker medication that can lower heart rate. A pulse of 52 beats per minute is relatively low and administering atenolol could further decrease the heart rate, potentially leading to bradycardia. Monitoring the pulse rate and holding the medication if the pulse is below the prescribed parameters is crucial to prevent adverse effects such as bradycardia and hypotension.
4. 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.
5. An older adult client has a new prescription for Digoxin and takes multiple other medications. The nurse should recognize that concurrent use of which of the following medications places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to toxicity. When given together, the digoxin dosage may need adjustment, and the nurse should closely monitor the client's digoxin levels to prevent toxicity symptoms such as nausea, vomiting, visual disturbances, and arrhythmias. The other choices, Phenytoin, Warfarin, and Aluminum hydroxide, do not significantly interact with Digoxin to cause toxicity. Phenytoin may reduce Digoxin levels, while Warfarin and Aluminum hydroxide have minimal interactions with Digoxin.
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