A newly diagnosed patient is prescribed lithium. Which information from the patient's history indicates that monitoring of serum concentrations of the drug will be challenging and critical?
Arthritis
Heart failure
Psoriasis
Epilepsy
The Correct Answer is B
Rationale:
A. Arthritis does not typically affect lithium metabolism or clearance.
B. Heart failure can impair renal function and fluid balance, increasing the risk of lithium toxicity and making serum concentration monitoring critical.
C. Psoriasis does not interfere with lithium pharmacokinetics.
D. Epilepsy is not directly related to lithium metabolism, though caution is warranted if the patient is on other medications.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Rationale:
A. Severe diarrhea, worsening tremor, weakness, and unsteady gait are signs of possible lithium toxicity, which requires immediate medical evaluation; the patient should be brought to the clinic promptly.
B. Restricting fluids can worsen dehydration and increase lithium concentration, making toxicity more likely.
C. Taking an antidiarrheal does not address the underlying problem and may delay urgent treatment.
D. Adding salt and water will not reverse toxicity and could delay necessary medical intervention.
Correct Answer is ["A","C","D","E"]
Explanation
Rationale:
A. This is a form of disorganized speech where the person rapidly shifts from one topic to another, often without logical connection.
B. This is a type of delusional thinking, not a speech pattern. It involves an inflated sense of self-importance or abilities.
C. This occurs when the person begins to answer a question but veers off-topic and never returns to the original point.
D. This involves including excessive and unnecessary detail but eventually returning to the point, demonstrating disorganized but not completely illogical thought.
E. This is rapid, excessive speech that is difficult to interrupt, common in manic episodes and a sign of disorganized communication.Top of Form
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