A patient with bipolar disorder is being treated with lithium. What laboratory test will provide the nurse with information on the effectiveness and toxicity of the patient's lithium levels?

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4. A serum level test will monitor therapeutic levels of medications, such as lithium, in order to test for effectiveness ranges and to prevent drug toxicity. A complete blood count (CBC) may be ordered to monitor for infections, toxins, preexisting conditions, or responses to medications. A basic metabolic panel (BMP) may be ordered to identify preexisting conditions or monitor side effects to medication. Urinalysis can reveal pregnancy, diabetes, proteins, or drug abuse.

A Patient with Bipolar Disorder Is Being Treated with Lithium