Medichecks advertise on here, and for an extra fee Will arrange for someone to take the blood sample, or advise you of the nearest clinic etc that will take the sample for you (you can see a list of their partner clinics on their website)
An at home private CDT blood test for DVLA medical. Carbohydrate Deficient Transferrin (CDT) is a bio-marker for heavy alcohol consumption and allows for the monitoring of alcohol consumption over an extended period of time. Order securely online today.
medichecks.com
Can I just check what you mean by approved though? They do private CDT checks, but the only ones that DVLA accept are the ones done through their own system, or your GP, but most GP’s have never even heard of CDT tests!