Why is a rapid bedside test for cocaine required prior to administering beta-blocker therapy for MI?

Updated: Sep 01, 2018
  • Author: Lynn Barkley Burnett, MD, EdD, LLB(c); Chief Editor: Sage W Wiener, MD  more...
  • Print
Answer

Objective assessment may aid decision-making when the patient's treatment or disposition may be altered in the presence of cocaine. [55] For example, beta-blockers are relatively contraindicated in cocaine use, but they are commonly given when cocaine is not considered a factor in myocardial injury or ischemia. However, in one study, 28% of patients with chest discomfort who tested positive for cocaine had denied using it. When beta-adrenergic blockade is being considered, even if cocaine toxicity is not suspected, a rapid bedside test for cocaine use may be appropriate because of its prevalence and the substantial rate of false-negative findings in the history of present illness.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!