Photo: dmason / Flickr

In a strong-worded statement this week, the Human Genetics Commission criticised home genetic testing kits by saying that they were ‘no more precise than reading tea leaves.’ While many people have relied on the accuracy of home genetic testing kits, it turns out that they’re just not one of the medical devices that can give precise information outside of a doctor’s office. Now, the Commission wants to put new, stricter guidelines in place for this kind of testing.

Testing times

Home genetic testing kits involve a saliva swab test, which is then sent off to a laboratory for testing – to see if the sample shows signs of a chance of developing hereditary conditions like Huntington’s Disease. While the fact that a laboratory is involved makes the process sound precise enough, new guidelines serve as a deterrent to inaccuracy by ensuring that these laboratories ‘follow basic principles of consent, data protection, truth in marketing, scientific rigour and balanced interpretation’.

More information

A concern with the home genetic testing kits is that those who simply buy them online aren’t provided with the information that they need to interpret the results correctly. Not only is there the problem of some using the kits feeling worried without reason, but also the more serious issue of those who are reassured by the results when they should be worried.

New guidelines

The guidelines state that tests should carry information both about counselling and about the limitations of the test. They should also only be sent to reliable and responsible laboratories. While the new guidelines are sure to improve the efficiency of the tests used by consumers, it’s always important to consult a healthcare professional before trusting a home testing device entirely – there’s nothing wrong with a second opinion.

Tags: medical devices