Senior doctors have called for a crackdown on consumer genetic tests, following an influx of patients who have been wrongly told they are carrying dangerous mutations linked to cancer or other devastating conditions.
Women have been incorrectly informed by companies that they have faulty BRCA genes, which convey a high risk of breast and ovarian cancers. One patient was scheduled for preventive breast-removal surgery after a consumer genetic test suggested she had a BRCA mutation. The surgery was called off at the last moment when an NHS laboratory revealed the result to be a false positive.