GPs must highlight dangers of home genetic testing kits

OTC tests Private tests increasingly popular as costs tumble.

GPs have been urged to warn patients of the potential dangers of using OTC genetic testing kits, as falling prices make them more affordable.

Genetic kits are now available in shops for less than £300, having cost thousands of pounds when they launched.

Dr Imran Rafi, chairman of the Primary Care Genetics Society and a GP in Surrey, told GP that the kits were becoming increasingly popular as more companies entered the market.

The rise comes despite a report by the Human Genetics Commission in 2007 which called for the restriction of advertising for genetic testing.

The report also recommended that genetic tests should only be offered by suitably qualified health professionals.

Dr Rafi said: 'GPs should urge caution with these tests. It is important that they have a discussion about the potential harms with their patients.

'They should take a family history and be particularly aware of high-risk families, who have a strong family history of diseases.'

Most GPs should be able to interpret the result of genetic tests, usually given in terms of relative and absolute risk, Dr Rafi said.

'The problem with these tests is that they use early research findings to identify single nucleotide polymorphisms (SNPs) that are common to diseases such as cancer and arthritis.

'It is unclear what research these tests are based on, so it is important that GPs look at the research behind the results.'

The tests will create problems not just for GPs but also for specialist genetic services.

'The patient will get a printout showing them a whole range of diseases. The concern is that they will be swayed by this information,' warned Dr Rafi.

'They will then require genetic counselling, which is provided by the NHS but not by the genetic test companies.'

Brian Whitley, managing director of the London-based genetics company GeneticHealth, said: 'Tests can be misleading to patients if the results are not properly explained to them. We offer our patients a face-to-face consultation with a doctor to discuss the findings.

'We offer tests that allow patients to identify their risk of common diseases. Informing patients that they might have an increased risk of developing a condition can allow them to make lifestyle changes like giving up smoking.'

sanjay.tanday@haymarket.com

Comment below and tell us what you think

Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Register

Already registered?

Sign in

Follow Us:

Just published

GPs demand 'early warning system' as drug shortages drive up workload

GPs demand 'early warning system' as drug shortages drive up workload

GP leaders have demanded an 'early warning system' to flag up medicine supply problems...

GPs need minimum 3.2% pay rise plus plan to reverse cuts, says BMA

GPs need minimum 3.2% pay rise plus plan to reverse cuts, says BMA

Pay for all doctors should rise by a minimum of 3.2% in 2019/20, the BMA has warned...

Solution to GP workforce crisis must come before NHS reform, MPs told

Solution to GP workforce crisis must come before NHS reform, MPs told

The workforce crisis and underfunding of general practice must be tackled before...

Multimorbidity: The gap between guidelines and the reality in practice

Multimorbidity: The gap between guidelines and the reality in practice

Delivering outcome-focused care to patients with comorbidities is increasingly problematic...

Doctors 'severely let down' by pay review body, warns BMA

Doctors 'severely let down' by pay review body, warns BMA

BMA leaders have demanded changes to the review process that sets GP pay, warning...

GP appointments data reveal year-on-year rise in workload

GP appointments data reveal year-on-year rise in workload

GP practices across England delivered nearly 500,000 more appointments in November...