HESI LPN
Pharmacology HESI Practice
1. 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.
2. A client with multiple sclerosis starts a new prescription, baclofen, to control muscle spasticity. Three days later, the client calls the clinic nurse and reports feeling fatigued and dizzy. Which instruction should the nurse provide?
- A. Avoid hazardous activities until symptoms subside
- B. Contact the healthcare provider immediately
- C. Continue taking the medication every day
- D. Stop taking the medication until the unpleasant side effects wear off
Correct answer: A
Rationale: The correct instruction for the nurse to provide is to advise the client to avoid hazardous activities until the symptoms of fatigue and dizziness subside. These side effects can impair the client's ability to engage in activities that require alertness and coordination, posing a risk for accidents. Contacting the healthcare provider immediately may not be necessary unless the symptoms worsen or persist. Continuing to take the medication every day without addressing the side effects can lead to further complications. Stopping the medication abruptly without healthcare provider guidance can also be risky and may not be necessary if the symptoms improve with time.
3. A client with chronic obstructive pulmonary disease (COPD) is prescribed ipratropium. The nurse should assess the client for which potential side effect?
- A. Nausea
- B. Dry mouth
- C. Cough
- D. Palpitations
Correct answer: B
Rationale: The correct answer is B: Dry mouth. Ipratropium can cause dry mouth as a common side effect due to its anticholinergic effects. Anticholinergic medications like ipratropium can lead to decreased salivary flow, resulting in dry mouth. Choices A, C, and D are incorrect because nausea, cough, and palpitations are not commonly associated with ipratropium use.
4. A client whose seizure disorder has been managed with phenytoin is admitted to the emergency department with status epilepticus. Which drug should the practical nurse anticipate being prescribed for administration to treat these seizures?
- A. Phenytoin
- B. Diazepam
- C. Phenobarbital
- D. Carbamazepine
Correct answer: B
Rationale: In the management of status epilepticus, which is a life-threatening condition of prolonged seizures, rapid intervention is crucial. Diazepam is the drug of choice for treating status epilepticus due to its fast onset of action and effectiveness in stopping seizures. It acts by enhancing the inhibitory neurotransmitter GABA to suppress seizure activity quickly. Phenytoin, although used for long-term seizure control, has a slower onset of action and is not the first-line medication for managing status epilepticus.
5. 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.
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