system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Calcium channel blockers are used in all, except -
assistant
The correct answer is  Ans. is 'c' i.e., Sick sinus syndrome o Calcium channel blockers suppress SA node automaticity --> can cause cardiac arrest in sick sinus syndrome.