The nurse assesses the patient receiving phentolamine (Regitine) and suspects what finding is an adverse effect of the medication?
A) Hypertension
B) Wheezing
C) Tachycardia
D) Depressed respirations
C
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Patients receiving phentolamine often experience extensions of the therapeutic effects, including hypotension, orthostatic hypotension, angina, myocardial infarction, cerebrovascular accident, flushing, tachycardia, and arrhythmia—all of which are related to vasodilation and decreased blood pressure. Headache, weakness, and dizziness often occur in response to hypotension. Nausea, vomiting, and diarrhea may also occur. Hypertension, wheezing, and depressed respiration would not be associated with phentolamine.
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