A nurse in a health care provider’s office is reviewing lab results and notes a phenytoin level was drawn.
Which level would the nurse consider as therapeutic documentation?
9 mcg/mL
4 mcg/mL
24 mcg/mL
17 mcg/mL
The Correct Answer is D
According to web search results, the total phenytoin reference range for children and adults is **10-20 µg/mL**¹. This means that a level of 17 mcg/mL falls within the therapeutic range.
Option A is within the therapeutic range but is on the lower end.
Option B is below the therapeutic range.
Option C is above the therapeutic range and could be considered toxic.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The order states that morphine 1 mg should be given intravenously (IV) every 2 hours as needed for pain. This means that the nurse should assess the client's pain level every 2 hours and determine if 1 mg of morphine IV is needed to manage the pain.
Option A is incorrect because the order specifies that morphine should be given every 2 hours as needed, not every hour.
Option B is incorrect because the order specifies that morphine should be given intravenously (IV), not enterally.
Option D is incorrect because the order specifies that morphine should be given as needed for pain, not automatically every 2 hours.
Correct Answer is D
Explanation
Memantine is a medication used to treat moderate-to-severe Alzheimer's disease ¹². It works by reducing the actions of chemicals in the brain that may contribute to the symptoms of Alzheimer's disease ¹. While memantine can help slow the progression of Alzheimer's disease, it is not a cure and may not improve the condition ².
Option A is not correct because constipation is a common side effect of memantine ².
Option B is not correct because memantine is approved for moderate-to-severe Alzheimer's disease ¹².
Option C is not correct because memantine does regulate the effects of glutamate ³.
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