A 75-year-old female on home oxygen is pale, cool, diaphoretic. BP 80/50, RR 20, SpO2 88%. Coarse rales are present and the monitor shows non-perfusing beats. What should you do first?

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Multiple Choice

A 75-year-old female on home oxygen is pale, cool, diaphoretic. BP 80/50, RR 20, SpO2 88%. Coarse rales are present and the monitor shows non-perfusing beats. What should you do first?

When perfusion is dropping because the heart rate is too slow, the first goal is to speed up the heart to restore circulation. Atropine does this by blocking vagal influence on the heart, which increases the firing of the SA node and enhances AV conduction. In an older patient with hypotension and signs of shock, a rapid rise in heart rate can quickly improve blood pressure and tissue perfusion. If atropine doesn’t yield a sufficient response, pacing—either transcutaneous or transvenous—should be considered next. Defibrillation is reserved for shockable rhythms like ventricular fibrillation or pulseless VT, which isn’t indicated here. Diuretics would worsen hypotension and edema in this acute setting, and while ensuring airway and ventilation is important, it isn’t the immediate first step when the problem is bradycardia with poor perfusion. Administer atropine IV, typically 0.5 mg every 3–5 minutes up to a total of 3 mg, and reassess.

When perfusion is dropping because the heart rate is too slow, the first goal is to speed up the heart to restore circulation. Atropine does this by blocking vagal influence on the heart, which increases the firing of the SA node and enhances AV conduction. In an older patient with hypotension and signs of shock, a rapid rise in heart rate can quickly improve blood pressure and tissue perfusion. If atropine doesn’t yield a sufficient response, pacing—either transcutaneous or transvenous—should be considered next. Defibrillation is reserved for shockable rhythms like ventricular fibrillation or pulseless VT, which isn’t indicated here. Diuretics would worsen hypotension and edema in this acute setting, and while ensuring airway and ventilation is important, it isn’t the immediate first step when the problem is bradycardia with poor perfusion. Administer atropine IV, typically 0.5 mg every 3–5 minutes up to a total of 3 mg, and reassess.

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