The challenge of inferior Q waves |
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Authors: | MacKenzie Ross |
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Institution: | Ross MacKenzie Consulting, 2261 Constance Drive, Oakville, Ontario L6J 5L8, Canada. rossmackenzieconsulting@msn.com |
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Abstract: | The presence of unexpected Q waves in an applicant's electrocardiogram poses a diagnostic dilemma for the medical director. On the one hand, the Q waves may be the remnants of a previously unsuspected "silent" myocardial infarction. Conversely, unexpected Q waves may represent a normal or positional variant, or an important noncoronary type of heart disease. This case study illustrates some of the pitfalls in interpreting applicants' electrocardiograms containing Q waves in the inferior leads. |
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