The American Thoracic Society Pulmonary Function Standards Committee developed guidelines for the 6MWT in clinical settings. The 6MWT was chosen because it is easier to administer, better tolerated, and better reflects activities of daily living than other walk tests.
Recurrent syncope or single syncopal episode accompanied by physical injury or motor vehicle crash or occurring in a high risk setting (for example, pilot, surgeon, commercial vehicle driver) and no evidence of structural cardiovascular disease; or presence of structural cardiovascular disease but other causes of syncope ruled out by diagnostic testing
Syncope induced by or associated with exercise
Further evaluation of patients in whom an apparent specific cause of syncope has been established (for example, asystole, high atrioventricular block) but susceptibility to neurocardiogenic syncope may affect treatment plan