Question:medium
A patient presents with irregularly irregular pulse and palpitations. He arrives 2.5 hours after symptom onset. There is no history of diabetes and BP is 160/100 mmHg. What is the next best step?
A patient presents with irregularly irregular pulse and palpitations. He arrives 2.5 hours after symptom onset. There is no history of diabetes and BP is 160/100 mmHg. What is the next best step?
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Stable atrial fibrillation usually needs rate control; unstable AF needs urgent synchronized cardioversion.
Updated On: May 14, 2026
- Control ventricular rate with verapamil
- Emergent cardioversion
- Transesophageal echo (TEE)
- Wait and watch
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
The patient has acute onset (< 48 hours) Atrial Fibrillation. He is hemodynamically stable (high BP). We need the most appropriate immediate step.
Step 2: Detailed Explanation:
Rate Control Priority: In a hemodynamically stable patient with AF, the initial management focus is "Rate Control" to improve symptoms and prevent tachycardia-induced complications.
Choice of Drug: Verapamil or Diltiazem (Non-DHP CCBs) or Beta-blockers are used for acute rate control in AF. Verapamil (Option A) effectively slows the AV node.
Cardioversion (Option B): "Emergent" cardioversion is reserved for unstable patients (e.g., hypotension, shock, acute pulmonary edema). A BP of 160/100 mmHg indicates the patient is stable. While cardioversion can be done later, it is not the "emergent" next step.
TEE (Option C): A TEE is usually done to rule out thrombus before cardioverting someone whose AF duration is unknown or > 48 hours. Since this is 2.5 hours, a TEE isn't strictly needed for cardioversion, but rate control remains the priority.
Step 3: Final Answer:
The next best step for a hemodynamically stable patient with symptomatic atrial fibrillation is to achieve Rate Control.
The patient has acute onset (< 48 hours) Atrial Fibrillation. He is hemodynamically stable (high BP). We need the most appropriate immediate step.
Step 2: Detailed Explanation:
Rate Control Priority: In a hemodynamically stable patient with AF, the initial management focus is "Rate Control" to improve symptoms and prevent tachycardia-induced complications.
Choice of Drug: Verapamil or Diltiazem (Non-DHP CCBs) or Beta-blockers are used for acute rate control in AF. Verapamil (Option A) effectively slows the AV node.
Cardioversion (Option B): "Emergent" cardioversion is reserved for unstable patients (e.g., hypotension, shock, acute pulmonary edema). A BP of 160/100 mmHg indicates the patient is stable. While cardioversion can be done later, it is not the "emergent" next step.
TEE (Option C): A TEE is usually done to rule out thrombus before cardioverting someone whose AF duration is unknown or > 48 hours. Since this is 2.5 hours, a TEE isn't strictly needed for cardioversion, but rate control remains the priority.
Step 3: Final Answer:
The next best step for a hemodynamically stable patient with symptomatic atrial fibrillation is to achieve Rate Control.
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