How it Works

How it Works

The know error^® system can be easily integrated within your existing pathology lab, regardless of whether those services are performed in house or by a reference lab partner. Additionally, the system involves just three simple steps and requires minimal disruption to the standard biopsy collection process.

Swab.
Before the biopsy procedure, a reference sample of DNA is taken by swabbing the inside of the patient’s cheek. The swab is then sent to an independent DNA lab.

Sample.
The patient’s biopsy tissue sample(s) are placed in bar-coded specimen containers included in the biopsy kit and sent to the pathology lab for evaluation.

DNA match.
If the biopsy results come back positive for cancer (malignant), the DNA lab performs a DNA Specimen Provenance Assignment (DSPA) test to compare the DNA profiles of the biopsy tissue and the reference sample. Concurrence of these profiles allows for absolute confirmation of patient identity.