A digest of Dr. Herbert’s monthly audio CME series
edited by Chris Feier, MD
A digest of Dr. Herbert’s monthly audio CME series, edited by Chris Feier, MD

As emergency physicians we want to stratify patients into risk categories based on their short-term probability of death or adverse event. This is in contrast to the internist who wants a more global assessment of a patient’s health to determine long-term preventive medications, such as statins. There are many tools we can use for this, but one of the most powerful is the resting EKG.

1.Use of the PERC (Pulmonary Embolism Rule-out Criteria) rule can significantly decrease work-up for pulmonary embolism.
To apply this rule, the clinician must first use clinical gestalt to classify the patient as low risk. The PERC rule, which consists of eight clinical criteria including history, physical and vital signs, can then be used. If both of these criteria are met, then there is less than a 2 percent risk that this patient has a PE and no further work-up is needed.

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