Nail Test - Not Recommended


Fingernails, like hair, are made of the protein keratin and are tested with the same process at some facilities. The problem with testing for drugs using fingernail clippings is that the elements in the blood are turned into keratin during metabolism and therefore are no longer present in their individual parts. Hair, however, retains the memory and the atomic structure of whatever has been ingested and keeps a record, much as the rings on a tree do.

Taking time to understand the testing process empowers individuals, organizations and companies with the information necessary to make the right decisions. Make the right decision by using proven tests and a proven team like SurScan!


The method of screening for drug use in a fingernail test is the five panel, Enzyme Multiple Immunoassay Test (EMIT). The fingernail is put in a chemical solution to rid the nail of external contaminants and is then liquefied.

SurScan does not recommend this test!

For drug and alcohol testing details and scheduling, please contact
SurScan at 972.633.1388.