ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare professional is reviewing a client's health record and notes that the client experiences permanent extrapyramidal effects caused by a previous medication. The healthcare professional should recognize that the medication affected which of the following systems in the client?
- A. Cardiovascular
- B. Immune
- C. Central nervous
- D. Gastrointestinal
Correct answer: C
Rationale: The correct answer is C: Central nervous. Extrapyramidal effects are movement disorders caused by certain medications affecting the central nervous system. These effects can include symptoms like tremors, rigidity, and bradykinesia. Medications like typical antipsychotics induce extrapyramidal effects by interfering with dopamine transmission in the central nervous system. Choices A, B, and D are incorrect as extrapyramidal effects are specifically related to the central nervous system and not the cardiovascular, immune, or gastrointestinal systems.
2. When providing discharge instructions to a client with a new prescription for Levofloxacin, which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Avoid taking this medication with dairy products.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct answer is to instruct the client to avoid taking Levofloxacin with dairy products. This is because calcium in dairy products can interfere with the absorption of the medication. Patients should be advised to take Levofloxacin either 1 hour before or 2 hours after consuming dairy products to ensure optimal effectiveness. Choice A is incorrect because Levofloxacin can be taken with or without food. Choice C is incorrect as the timing of Levofloxacin administration is not specified as at bedtime. Choice D is also incorrect as there is no need to increase intake of potassium-rich foods specifically for Levofloxacin administration.
3. Phenytoin is an antiarrhythmic and anticonvulsant that has an unlabeled use for:
- A. Headaches
- B. Cold remedy
- C. Neuropathic pain
- D. Antianxiety
Correct answer: C
Rationale: Phenytoin, an antiarrhythmic and anticonvulsant medication, is also used off-label for treating neuropathic pain. While its primary indications are for managing heart rhythm disorders and seizures, it has shown efficacy in managing neuropathic pain, expanding its clinical utility. Choices A, B, and D are incorrect as phenytoin is not commonly used for headaches, cold remedies, or antianxiety purposes.
4. When teaching a client with schizophrenia strategies to cope with anticholinergic effects of Fluphenazine, which of the following should the nurse suggest to minimize anticholinergic effects?
- A. Take the medication in the morning to prevent insomnia.
- B. Chew sugarless gum to moisten the mouth.
- C. Use cooling measures to decrease fever.
- D. Take an antacid to relieve nausea.
Correct answer: B
Rationale: The correct answer is B: 'Chew sugarless gum to moisten the mouth.' Chewing sugarless gum can help alleviate dry mouth, which is a common anticholinergic effect of Fluphenazine. Dry mouth can be uncomfortable and affect the client's oral health. Options A, C, and D are incorrect because they do not directly address anticholinergic effects. Taking the medication in the morning to prevent insomnia (Option A) is unrelated to anticholinergic effects. Using cooling measures to decrease fever (Option C) is not a common anticholinergic effect of Fluphenazine. Taking an antacid to relieve nausea (Option D) does not specifically target anticholinergic effects.
5. 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.
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