What does the pharmacotherapy for Parkinson's disease intended to do?
Increase the amount of dopamine and reduce the amount of acetylcholine.
Increase the amount of dopamine and acetylcholine.
Reduce the amount of dopamine and increase the amount of acetylcholine.
Reduce the amount of dopamine and acetylcholine.
The Correct Answer is A
A. Increase the amount of dopamine and reduce the amount of acetylcholine:
This is the correct answer. Parkinson's disease is characterized by a deficiency of dopamine, so medications aim to increase dopamine levels. Additionally, reducing the activity of acetylcholine helps to restore the balance between these neurotransmitters.
B. Increase the amount of dopamine and acetylcholine:
This is not accurate. Increasing both dopamine and acetylcholine would not address the underlying imbalance seen in Parkinson's disease.
C. Reduce the amount of dopamine and increase the amount of acetylcholine:
This is incorrect. Parkinson's disease involves a reduction in dopamine levels, so reducing dopamine further would worsen the symptoms. Additionally, increasing acetylcholine is not the therapeutic goal in Parkinson's disease.
D. Reduce the amount of dopamine and acetylcholine:
This is not the correct approach. Decreasing both dopamine and acetylcholine would exacerbate the symptoms of Parkinson's disease, as the primary issue is the deficiency of dopamine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.5"]
Explanation
To calculate the amount of solution needed for each dose, we need to use the formula:
Amount of solution (mL) = Dose (mg) / Concentration (mg/mL)
Plugging in the given values, we get:
Amount of solution (mL) = 50 mg / 20 mg/mL
Simplifying, we get:
Amount of solution (mL) = 2.5 mL
Therefore, the nurse must administer 2.5 mL of the solution for each dose.
Correct Answer is D
Explanation
A. Administer the dose since the patient is not toxic.
This is not the appropriate action. With a drowsy patient and a high serum phenytoin level, there is a concern for toxicity. Administering the next dose could worsen the toxicity.
B. Contact the provider to discuss decreasing the phenytoin dose.
While adjusting the dose may be a consideration, the immediate action should be to withhold the next dose and report the elevated level to the healthcare provider. The provider can then determine the appropriate course of action.
C. Give the drug and monitor closely for adverse effects.
Giving the drug without further intervention is not appropriate when there are signs of potential toxicity, such as drowsiness. Monitoring alone is not sufficient in this case.
D. Report drug toxicity to the providers.
This is the correct choice. With a drowsy patient and a serum phenytoin level of 18 mcg/mL, which is considered high, reporting the drug toxicity to the healthcare provider is the immediate and appropriate action. The provider can then determine the next steps, such as adjusting the dose or ordering additional tests.
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