Which statement best describes bradycardia and its initial management?

Which statement best describes bradycardia and its initial management?

• A. Heart rate less than 60 bpm; if responsive to atropine, usually benign; if not, pacemaker may be needed
• B. Immediate defibrillation is required
• C. Pacemaker is always the first-line treatment
• D. Epinephrine infusion is the definitive therapy

Answer: (A)

Bradycardia means a slower-than-normal heart rate, typically under 60 bpm, and how you manage it depends on how the patient is doing and whether there are reversible causes. The best initial approach for symptomatic bradycardia is atropine given promptly. If the patient responds to atropine, the slowdown is often due to reversible factors or benign conduction slowing, and invasive measures may not be needed. If atropine fails to raise the rate, or if there is evidence of a high-degree AV block or ongoing instability, temporary pacing is the next step, with a permanent pacemaker considered later if the bradycardia is due to chronic conduction disease. Immediate defibrillation isn’t appropriate for bradycardia, since defibrillation targets shockable tachyarrhythmias. A pacemaker isn’t always the first-line treatment; it’s reserved for cases where pharmacologic therapy fails or there’s persistent conduction block. Epinephrine isn’t the definitive therapy for bradycardia; it may be used in refractory cases as part of ACLS, but it’s not the primary management.

Bradycardia means a slower-than-normal heart rate, typically under 60 bpm, and how you manage it depends on how the patient is doing and whether there are reversible causes. The best initial approach for symptomatic bradycardia is atropine given promptly. If the patient responds to atropine, the slowdown is often due to reversible factors or benign conduction slowing, and invasive measures may not be needed. If atropine fails to raise the rate, or if there is evidence of a high-degree AV block or ongoing instability, temporary pacing is the next step, with a permanent pacemaker considered later if the bradycardia is due to chronic conduction disease. Immediate defibrillation isn’t appropriate for bradycardia, since defibrillation targets shockable tachyarrhythmias. A pacemaker isn’t always the first-line treatment; it’s reserved for cases where pharmacologic therapy fails or there’s persistent conduction block. Epinephrine isn’t the definitive therapy for bradycardia; it may be used in refractory cases as part of ACLS, but it’s not the primary management.