- disturbed heart rate
Number 4 is correct.
Rationale: Phenytoin (Dilantin) may be given to a person experiencing seizures while undergoing withdrawal from alcohol. For a disturbed heart rate, lidocaine (Xylocaine) may be given. For hallucinations, Haldol (haloperidol) may be given. For drowsiness, the nurse would lessen the dosage of diazepam.