HESI LPN
HESI Pharmacology Exam Test Bank
1. A practical nurse is caring for a client with chronic obstructive pulmonary disease (COPD) who is receiving theophylline. Which symptom indicates that the client may be experiencing theophylline toxicity?
- A. Bradycardia
- B. Tremors
- C. Constipation
- D. Hypotension
Correct answer: B
Rationale: Tremors are a common symptom of theophylline toxicity. Other symptoms that may indicate theophylline toxicity include nausea, vomiting, and seizures. Bradycardia, constipation, and hypotension are not typically associated with theophylline toxicity. It is important for the nurse to monitor the client closely for these signs of toxicity and report them promptly to the healthcare provider to prevent further complications.
2. A client has been diagnosed with open-angle glaucoma. The healthcare provider prescribes pilocarpine 1% eye drops. The nurse explains that which action of this drug makes it a useful treatment for the client's condition?
- A. The ciliary muscle contracts, increasing the outflow of aqueous humor in the eye.
- B. Ciliary muscles are paralyzed to decrease accommodation.
- C. Bilateral mydriasis with cycloplegia is accomplished.
- D. The production of aqueous humor in the eyes is decreased.
Correct answer: A
Rationale: Pilocarpine, a cholinergic agent, stimulates the ciliary muscle to contract, which opens the trabecular meshwork and facilitates the outflow of aqueous humor, reducing intraocular pressure. This mechanism helps in managing open-angle glaucoma by improving drainage and lowering pressure within the eye. Choice A is correct because the contraction of the ciliary muscle increases the outflow of aqueous humor, aiding in the treatment of open-angle glaucoma. Choices B, C, and D are incorrect because they do not describe the mechanism of action of pilocarpine in treating glaucoma.
3. After receiving the third dose of a new oral anticoagulant prescription, which action should the nurse implement? Select all that apply.
- A. Notify the healthcare provider of the finding
- B. Provide a PRN NSAID for gum discomfort
- C. Review the most recent coagulation lab values
- D. Complete a medication variance report
Correct answer: C
Rationale: Reviewing the most recent coagulation lab values is crucial after receiving multiple doses of a new oral anticoagulant to ensure the patient is within the desired therapeutic range and to prevent adverse events related to over or under-anticoagulation. It is essential to monitor these values closely to adjust the dosage if needed. Notifying the healthcare provider of any concerning findings is important, but it may not be the immediate priority after receiving the third dose. Providing a PRN NSAID for gum discomfort is not typically indicated with oral anticoagulant therapy, as it may increase the risk of bleeding. Completing a medication variance report is more relevant in cases of medication errors or discrepancies, which may not apply in this scenario.
4. A client with osteoporosis is prescribed alendronate. The practical nurse (PN) should reinforce which instruction regarding the administration of this medication?
- A. Take the medication with a full glass of water before breakfast.
- B. Take the medication immediately after a meal.
- C. Lie down for 30 minutes after taking the medication.
- D. Crush the medication and mix it with food.
Correct answer: A
Rationale: The correct instruction for administering alendronate is to take the medication with a full glass of water before breakfast. This timing is crucial to ensure proper absorption in the body and reduce the risk of esophageal irritation. Taking it immediately after a meal or lying down for 30 minutes after may affect absorption and increase the risk of adverse effects. It should not be crushed or mixed with food to maintain its effectiveness.
5. A client with a history of heart failure is prescribed carvedilol. The nurse should monitor the client for which adverse effect?
- A. Dizziness upon standing
- B. Weight loss
- C. Bradycardia
- D. Hypotension
Correct answer: D
Rationale: The correct answer is D: Hypotension. Carvedilol, a beta-blocker, can lead to hypotension by blocking the effects of adrenaline, which can cause blood vessels to dilate and reduce blood pressure. While dizziness upon standing is a potential adverse effect of carvedilol, it is more specifically related to orthostatic hypotension, which is a form of hypotension that occurs when a person stands up from a sitting or lying position. Weight loss and bradycardia are not typically associated with carvedilol use. Therefore, the nurse should primarily monitor for hypotension in a client taking carvedilol.
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