Potential Assay Drift

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 175 CE courses, most popular
$109Add to cart
Pick Your Courses
Up to 8 CE hours
$55Add to cart
Individual course$25Add to cart
Need multiple seats for your university or lab? Get a quote
The page below is a sample from the LabCE course Calibration of Clinical Laboratory Analytes. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Calibration of Clinical Laboratory Analytes (online CE course)
Potential Assay Drift

After calibration of a clinical assay, drifting of QC values can indicate that the clinical assay is slowly trending out of control over time. This is due to a natural loss or gain of signal and the cause is usually undefinable. Drifting could also indicate that a reagent, electronic component, or even the QC itself has experienced degradation. Ultimately, some amount of drift may be acceptable depending on the assay, but at a certain level, significant drift will begin impacting the analytical accuracy of patient results and needs to be addressed.

QC drift over time.