Atropine is given in the management of which condition?

Atropine is given in the management of which condition?

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

Answer: (C)

Atropine increases heart rate by blocking acetylcholine’s effect on muscarinic receptors in the heart, removing the parasympathetic (vagal) influence on the SA node and AV node. This speeds the firing of the sinoatrial node and improves conduction through the AV node, making it the first-line pharmacologic choice for symptomatic bradycardia, including severe bradycardia, where the heart is beating too slowly and hemodynamics may be compromised. It acts quickly when given IV, and if there isn’t adequate response, pacing or other supportive measures are used. This medication isn’t a remedy for hypertension, tachyarrhythmias, or atrial fibrillation; in those conditions it wouldn’t address the underlying issue and could worsen heart rate abnormalities.

Atropine increases heart rate by blocking acetylcholine’s effect on muscarinic receptors in the heart, removing the parasympathetic (vagal) influence on the SA node and AV node. This speeds the firing of the sinoatrial node and improves conduction through the AV node, making it the first-line pharmacologic choice for symptomatic bradycardia, including severe bradycardia, where the heart is beating too slowly and hemodynamics may be compromised. It acts quickly when given IV, and if there isn’t adequate response, pacing or other supportive measures are used. This medication isn’t a remedy for hypertension, tachyarrhythmias, or atrial fibrillation; in those conditions it wouldn’t address the underlying issue and could worsen heart rate abnormalities.