An elderly male client has been taking doxazosin 2 mg daily for 4 weeks for treatment of benign prostatic hypertrophy. the client reports feeling dizzy. the nurse should first

The nurse should first take his blood pressure lying, standing, and sitting. Doxazosin is also used as an antihypertensive agent; the client may be experiencing orthostatic hypotension. Testing the urine for ketones would be appropriate if the client had diabetes mellitus. Because an adverse effect of doxazosin is orthostatic hypotension, the nurse should first take the client's blood pressure; later, she can review other mediations.