ATI RN
ATI Proctored Pharmacology Test
1. 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.
2. When educating a client prescribed Rifampin, which instruction should the nurse provide?
- A. Expect orange discoloration of urine.
- B. Take the medication with food.
- C. Increase your intake of dairy products.
- D. Discontinue the medication if you experience itching.
Correct answer: A
Rationale: The correct instruction for a client prescribed Rifampin is to expect orange discoloration of urine. Rifampin is known to cause harmless discoloration of bodily fluids, including urine, which is a common side effect of this medication. It is important for the nurse to educate the client about this expected side effect to prevent unnecessary concern or discontinuation of the medication. Choices B, C, and D are incorrect because Rifampin does not require specific dietary considerations like taking it with food or increasing dairy intake. Furthermore, itching is not a common side effect that would necessitate immediate discontinuation of Rifampin.
3. What is the therapeutic use of Phenytoin?
- A. Replacement in hypothyroidism to restore normal hormonal balance
- B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
- C. Diminished seizure activity, termination of ventricular arrhythmias
- D. Prevention of thrombus formation, prevention of extension of existing thrombi
Correct answer: C
Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.
4. When teaching the family of a child with Cystic Fibrosis about a new prescription for Acetylcysteine, which information should the nurse include?
- A. Expect this medication to suppress your cough.
- B. Expect this medication to smell like rotten eggs.
- C. Expect this medication to cause euphoria.
- D. Expect this medication to turn your urine orange.
Correct answer: B
Rationale: The correct answer is B: 'Expect this medication to smell like rotten eggs.' Acetylcysteine contains sulfur, which gives it a characteristic rotten-egg odor. This odor is normal and expected when using this medication. Choices A, C, and D are incorrect because Acetylcysteine is not used to suppress cough, cause euphoria, or change urine color. Educating the family on the distinct smell of Acetylcysteine will help them understand its characteristics and alleviate concerns about the odor.
5. A client with osteoporosis has a new prescription for alendronate. Which of the following instructions should the nurse provide?
- A. Take the medication with a meal.
- B. Remain upright for at least 30 minutes after taking the medication.
- C. Take the medication with a glass of juice.
- D. Take the medication with milk or food.
Correct answer: B
Rationale: The correct instruction for a client taking alendronate is to remain upright for at least 30 minutes after administration. This is essential to prevent esophageal irritation and ensure the medication reaches the stomach properly. Remaining upright reduces the risk of side effects such as esophagitis. Choices A, C, and D are incorrect as alendronate should not be taken with a meal, juice, milk, or food to optimize its absorption and effectiveness.
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