A patient has been taking lithium for 1 year, and the most recent lithium level is 0.9 mEq/L. Which statement about the laboratory result is correct?
The lithium level is too low
The lithium level is therapeutic
Lithium is not usually monitored with blood levels
The lithium level is too high
The Correct Answer is B
A. A lithium level of 0.9 mEq/L falls within the therapeutic range for lithium, so it is not too low.
B. A lithium level of 0.9 mEq/L is within the therapeutic range for lithium maintenance therapy, which typically ranges from 0.6 to 1.2 mEq/L. Therefore, it is considered therapeutic.
C. Lithium is commonly monitored with blood levels to ensure therapeutic efficacy and to prevent toxicity.
D. A lithium level of 0.9 mEq/L is not too high; it is within the therapeutic range.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Improved ability to perform activities of daily living: Antiparkinson medications are aimed at improving motor symptoms such as tremors, rigidity, and bradykinesia, leading to improved function in activities of daily living.
B. Decreased appetite: Decreased appetite is not a therapeutic response to antiparkinson medications. In fact, some medications may cause weight gain due to increased appetite.
C. Newly developed dyskinesias: Dyskinesias are involuntary movements that can occur as a side effect of long-term treatment with antiparkinson medications, particularly levodopa. They are not a therapeutic response and may require adjustments to medication.
D. Gradual development of cogwheel rigidity: Cogwheel rigidity is a symptom of Parkinson's disease and would not be expected to develop gradually with treatment. Antiparkinson
medications aim to reduce rigidity, not cause it.
Correct Answer is B
Explanation
A. Bupropion is primarily used as an antidepressant and smoking cessation aid. It is not typically used for opioid withdrawal.
B. Methadone is a synthetic opioid agonist commonly used in the management of opioid withdrawal. It helps to alleviate withdrawal symptoms and can be used as part of a long-term maintenance program for opioid dependence.
C. Disulfiram is used in the treatment of alcohol dependence by creating unpleasant effects when alcohol is consumed. It is not indicated for opioid withdrawal.
D. Phenobarbital is a barbiturate with sedative and anticonvulsant properties. While it can be used to manage certain withdrawal symptoms, such as seizures associated with alcohol withdrawal, it is not typically used as a first-line treatment for opioid withdrawal.
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