Welcome to Episode 132 of the Nursing Show

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Tip of The Week- Calcium Channel Blockers Overdose With Lisa Booze of Maryland Poison Center

Calcium channel blockers and beta blockers are drugs primarily used for hypertension, cardiovascular disease, and arrhythmias. They are very commonly prescribed and very commonly involved in unintentional as well as intentional overdoses.

Nurses should keep an eye on patients taking calcium channel blockers for symptoms of overdose include confusion, dizziness, confussion, arrhythmia, slurred speech, bradycardia, SOB and weakness.

To resolve the symptoms, hospital protocols for bradycardia and hypotension should be followed, and may include atropine, epinephrine, norepinephrine, other vasopressors and IV fluids. Calcium and Glucagon may also be given as antidotes to calcium channel blockers.

For patients following treatment of overdose, calcium levels should be monitored and observed for complications of overaggressive calcium administration.

Refer to the links below for more on calcium channel blockers overdose.

NIH Article on Calcium Channel Blocker Overdose

Medscape article on Calcium Channel Blocker Toxicity

Maryland Poison Center


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