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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. This indicates continued manic behavior such as distractibility and impulsivity, suggesting the treatment has not yet been effective.
B. These symptoms are consistent with acute mania, including poor sleep and distractibility, showing that the condition persists.
C. This reflects improvement in mood, behavior, and thought organization, indicating that the treatment is effective.
D. These are signs of ongoing manic behavior, especially impulsivity and rapid, excessive speech.
Correct Answer is A
Explanation
Rationale:
A. Energy drink containers may be counted because excessive caffeine intake can worsen agitation and mania symptoms. Monitoring caffeine consumption is relevant in manic episodes.
B. Hypodermic needles are not typically related to mania assessment unless substance abuse is suspected.
C. Empty soda cans may contain caffeine but energy drinks have a much higher caffeine concentration, making them more clinically relevant.
D. Fast food wrappers indicate diet but are less directly related to manic behavior management.
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