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CCRN Critical Care Nursing

Category - Adult

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A patient in the emergency room is being worked up for acute coronary syndrome. You are performing an EKG on the patient and notice wide QRS complexes in the pre-cordial leads. What is the significance of this finding?

right sided heart failure
bundle branch block
complete heart block
normal ventricular conduction

Explanation

Answer: B - A wide QRS complex on the EKG rhythm is indicative of a bundle branch block. It is important to check old EKG’s to see if the bundle branch is new or old. A new bundle branch block can indicate a developing myocardial infarction.

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CCRN Critical Care Nursing

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CCRN Critical Care Nursing

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