A patient is diagnosed with benign prostatic hypertrophy (BPH). What rationale does the nurse provide for measuring the patient's blood pressure?
1. To help determine whether the patient can tolerate doxazosin mesylate (Cardura)
2. As baseline BP if surgery is indicated
3. To help determine the volume of urine being retained in the bladder
4. To determine the dose of finasteride (Proscar)
1
Rationale 1: Excessive, smooth muscle contraction in BPH may be blocked with alpha-adrenergic antagonists such as doxazosin mesylate (Cardura) and tamsulosin (Flomax). These medications may cause orthostatic hypotension.
Rationale 2: Surgical intervention to manage BPH may not be performed.
Rationale 3: The volume of urinary residual does not have bearing in this question.
Rationale 4: The Proscar dose is not influenced by blood pressure.
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