Emergency Department Management Of Calcium-Channel Blocker, Beta Blocker, And Digoxin Toxicity
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Emergency Department Management Of Calcium-Channel Blocker, Beta Blocker, And Digoxin Toxicity

February 2014

Abstract

While it is relatively uncommon, an overdose of calcium-channel blockers, beta blockers, or digoxin has a significant morbidity and mortality rate, and its management can be complex. Digoxin toxicity can present with an acute overdose or as chronic toxicity while a patient is on therapeutic dosing, which has implications for diagnosis and management. While the patient’s specific clinical presentation may depend on factors such as the time of exposure and the type of agent ingested, the differential diagnosis of the bradycardic and hypotensive patient is narrow, and toxicity from these agents must be considered. This review provides an evidence- based overview of the emergency department management of calcium-channel blocker overdose, beta blocker overdose, and digoxin toxicity.

Key words: beta blocker poisoning, calcium-channel, blocker poisoning, digitalis toxicity, and chronic digoxin toxicity, bidirectional ventricular tachycardia, bradycardia, hypotension

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