A nurse is assessing a client who has Parkinson's disease and is taking levodopa/carbidopa. The nurse observes that the client has tremors and twitching.
Which of the following medications should the nurse anticipate administering?
Metoprolol.
Bethanechol.
Amantadine.
Gabapentin.
The Correct Answer is C
Choice A rationale
Metoprolol is a beta-blocker primarily used to treat hypertension, angina, and heart failure. It works by blocking beta-adrenergic receptors, leading to decreased heart rate and blood pressure. It is not indicated for managing tremors or dyskinesias associated with levodopa/carbidopa therapy in Parkinson's disease, as these are typically dopaminergic in origin.
Choice B rationale
Bethanechol is a muscarinic cholinergic agonist that increases bladder tone and stimulates gastrointestinal motility. It is primarily used for urinary retention and gastroesophageal reflux disease. Its mechanism involves directly stimulating muscarinic receptors. It has no role in addressing the motor complications like tremors and twitching seen with levodopa/carbidopa in Parkinson's disease.
Choice C rationale
Amantadine is an antiviral drug also used to treat dyskinesia associated with levodopa therapy in Parkinson's disease. Its precise mechanism of action in Parkinson's is not fully understood, but it is thought to modulate dopaminergic and glutamatergic neurotransmission. It can help reduce tremors, rigidity, and involuntary movements.
Choice D rationale
Gabapentin is an anticonvulsant and neuropathic pain medication. It is structurally related to GABA but does not act directly on GABA receptors. Its mechanism of action involves modulating calcium channels. While it can treat some neurological symptoms, it is not a primary treatment for levodopa-induced tremors and twitching in Parkinson's disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E"]
Explanation
Choice A rationale
An elevated troponin level indicates myocardial injury or infarction. While severe acetaminophen toxicity can rarely lead to cardiac dysfunction, it is not a primary or common finding. The main organ affected is the liver due to the formation of toxic metabolites.
Choice B rationale
Hyperglycemia is not a typical finding in acetaminophen toxicity. Liver damage can impair glucose regulation, but the immediate and common metabolic derangements are usually related to liver enzyme elevation and acid-base imbalances, not primary glucose elevation.
Choice C rationale
Increased alanine aminotransferase (ALT) level is a critical indicator of hepatotoxicity, the primary concern in acetaminophen overdose. N-acetyl-p-benzoquinone imine (NAPQI), a toxic metabolite, depletes glutathione, leading to hepatocellular necrosis and leakage of intracellular enzymes like ALT (normal range 7–55 U/L).
Choice D rationale
Abdominal discomfort is a common finding in acetaminophen toxicity, particularly as liver damage progresses. This discomfort, often described as right upper quadrant pain, results from hepatocellular injury and inflammation, potentially accompanied by hepatic swelling.
Choice E rationale
Sweating (diaphoresis) can occur as a nonspecific systemic symptom in toxicity stages, often with nausea or malaise. Monitor vital signs and symptoms for systemic involvement.Diaphoresis is a common clinical manifestation during the initial and middle stages of toxicity. It is part of the systemic metabolic stress response to the circulating toxins and early liver dysfunction.
Correct Answer is C
Explanation
Choice A rationale
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can exacerbate gastric ulcers by inhibiting prostaglandin synthesis, which normally protects the gastric mucosa. Continuing ibuprofen would counteract the therapeutic effects of esomeprazole, a proton pump inhibitor, and increase the risk of gastrointestinal bleeding and ulcer perforation.
Choice B rationale
Esomeprazole delayed-release capsules contain enteric-coated pellets to protect the active ingredient from gastric acid degradation, allowing absorption in the small intestine. Crushing the medication would destroy this protective coating, leading to premature drug release in the stomach and reduced bioavailability, thereby diminishing its therapeutic efficacy.
Choice C rationale
Esomeprazole is a proton pump inhibitor that irreversibly binds to and inhibits the H+/K+-ATPase pump in gastric parietal cells, thereby reducing gastric acid secretion. Taking it 60 minutes before a meal ensures that peak plasma concentrations coincide with the maximal activity of these pumps, which are stimulated by food intake, optimizing its acid-suppressing effect.
Choice D rationale
While some medications can cause insomnia, it is not a commonly reported adverse effect of esomeprazole. Common adverse effects of proton pump inhibitors typically include headache, nausea, diarrhea, abdominal pain, and flatulence, reflecting their primary actions on the gastrointestinal system and potential systemic effects.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
