During an admission assessment, a nurse notes that a client diagnosed with schizophrenia has allergies to penicillin, prochlorperazine (Compazine), and bee stings
On the basis of this assessment data, which antipsychotic medication would be contraindicated?
A. Haloperidol (Haldol), because it is used only in elderly patients
B. Clozapine (Clozaril), because of a cross-sensitivity to penicillin
C. Risperidone (Risperdal), because it exacerbates symptoms of depression
D. Thioridazine (Mellaril), because of cross-sensitivity among phenothiazines
ANS: D
The nurse should know that thioridazine (Mellaril) would be contraindicated because of cross-sensitivity among phenothiazines. Prochlorperazine (Compazine) and thioridazine are both classified as phenothiazines.
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