The Nurse Administers the First Dose of Doxazosin (Cardura)to a Male

The nurse administers the first dose of doxazosin (Cardura) to a male client in the clinical setting.What is the next priority action by the nurse?

A) Ask the patient to sit down for a few minutes.
B) Monitor the patient for diaphoresis and onset of a headache.
C) Encourage increased oral hydration following administration.
D) Call his previously arranged ride to take him home, as he cannot drive until it is determined how he responds to the medication.