A false positive result is better than a false negative result. At least the doctor will keep an eye and investigate further in case it is not a fault.
Mine one turn out could be artefacted. My doctor over confident and claim that I'm a female. End up I have a heart attack and causing a permanent damaged in my lower left ventricle. Now end up I have a severe hypokenises and my heart doesn't want to beat anymore.....

My cardio still think the echo is an error. He didn't want to accept his over confident, he afraid I'll sue him!