S1Q3T3: The criteria is often thought to suggest "right ventricular strain" & has thus typically been thought to be associated with pulmonary embolism. However, the EKG finding itself is very non-specific, and must be taken into context with all of the history, exam findings, and lab tests. It can even be normal, or a "red herring" within the diagnosis. See cardiologist for full discussion.
Answered 2/27/2015
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