TMT positive suggests that certain part of the heart is not receiving adequate blood supply in the time of stress which means that there has to be some amount of blockage in the blood vessels supplying blood to the heart so 2 things should be done Medications like blood thinners cholesterol and others heart medication used to be started and will continue for at least a long time if not life long And a coronary or CT angiography needs to be done to check the percentage of blockage and the location and intensity of severity of disease according to to which the treatment will depend so I will advise you to get the above tests done as soon as possible because he carries a risk of eminent heart attack with TMT positive