To avoid contamination the gel can be applied to the back, thighs, legs or stomach rather than the arms and gloves can be used to apply the gel for a couple of days before the blood test.
We advise that tests should be carried out 4 - 6 hours after the gel is applied.
You may also want to consider using a local laboratory for the tests. We use a service that has over 170 clinics UK wide, carrying out a test in person can reduce the risk of sample contamination.
Full information about home blood testing kits can be found on our website.