Atropine is given for which condition?

Atropine is given for which condition?

• A. Symptomatic bradycardia
• B. Tachycardia
• C. Hypertension
• D. Atrial fibrillation

Answer: (A)

Atropine works by blocking parasympathetic (muscarinic) influence on the heart, which raises the heart rate by increasing SA node automaticity and AV conduction. In symptomatic bradycardia, the slow rate can reduce perfusion, so counteracting the vagal tone with atropine helps restore an adequate heart rate and improve perfusion. It isn’t used to treat tachycardia, hypertension, or atrial fibrillation because those conditions involve too-fast heart rates or different mechanisms, and atropine would not correct the underlying issue and could worsen tachycardia or provide no meaningful benefit.

Atropine works by blocking parasympathetic (muscarinic) influence on the heart, which raises the heart rate by increasing SA node automaticity and AV conduction. In symptomatic bradycardia, the slow rate can reduce perfusion, so counteracting the vagal tone with atropine helps restore an adequate heart rate and improve perfusion. It isn’t used to treat tachycardia, hypertension, or atrial fibrillation because those conditions involve too-fast heart rates or different mechanisms, and atropine would not correct the underlying issue and could worsen tachycardia or provide no meaningful benefit.