A nurse knows that lithium should be measured at least how many days after beginning lithium therapy and after any dosage change when?
Two weeks
1 month
5 days
1 day
The Correct Answer is C
Rationale:
A. Suggesting it is unusual for the provider to continue lithium could undermine trust in the treatment plan and is inaccurate.
B. Lithium is typically continued long-term or indefinitely to prevent relapse, not just for 6 months.
C. Continuing daily lithium helps maintain mood stability and significantly reduces the risk of relapse in bipolar disorder, even when the patient feels well.
D. Stopping lithium after only 1 month of stability greatly increases the likelihood of recurrence of manic or depressive episodes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Bipolar I disorder involves episodes of full mania, not just hypomania.
B. Bipolar II disorder is characterized by alternating episodes of hypomania and major depression (often mild to moderate).
C. Cyclothymic disorder involves milder mood swings but does not meet criteria for hypomania or major depression.
D. Schizophrenia is a psychotic disorder, not primarily a mood disorder with hypomanic and depressive episodes.
Correct Answer is B
Explanation
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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