A nurse is reviewing laboratory findings for a patient with bipolar disorder. The patient is to be started on carbamazepine (Tegretol). Which laboratory value should the nurse be prepared to obtain as a baseline level?
a. Blood urea nitrogen
b. Direct bilirubin
c. Complete blood count
d. Thyroid function studies
ANS: C
A complete blood count should be obtained at baseline and periodically thereafter. Carbamazepine can cause changes in hematological laboratory values.
Blood urea nitrogen, direct bilirubin, and thyroid function studies are not adversely effected by carbamazepine.
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