Sinus tachycardia at a rate of 32 beats/min

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A patient develops sinus tachycardia at a rate of 32 beats/min has a blood pressure of 80/42 mm Hg and is complaining of feeling faint. Which action should the nurse take:

● Rck the heart rhythm and BP in 5 min

● Give the scheduled dose of diltiazem (Cardizem)

● Have the patient perform Valsalva maneuver

● Administer 0.5mg atropine