Acute & emergency · UKMLA & AKT
Beta-blocker and calcium channel blocker overdose
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Beta-blockers and calcium channel blockers (CCBs) are among the most dangerous cardiac drugs in overdose - both depress conduction and contractility, causing life-threatening bradycardia and cardiogenic shock. Modified-release preparations delay onset by 6-12 hours.
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