WSLH Proficiency Testing has been a provider of proficiency testing services for over 50 years. As the only proficiency testing provider that is part of a working laboratory and a top US public university, our mission is focused on promoting education and public health to laboratories nationwide.


WSLH PT offers proficiency testing plus unparalleled customer service, at a competitive price.

More samples per program, staggered shipments, and web-based management tools are all part of the WSLH experience.  Plus our knowledgeable staff of medical technologists are available to answer any question you might have throughout your proficiency testing process.

We also offer a wide array of QA options, continuing education, and flexible ordering.

Check out our catalog, browse our price list, or submit your order today!

How can we help you?  Get in touch!


2019 Catalog Now Available!

Check out the new look!

View online

Download PDF

View Price list

View Calendar

Submit your order


New for 2019

•  SHBG and Testosterone

• Urine Chemistry – Afinion

• Immunoproteins

•  Thyroid Antibodies

•  Blood Culture

•  GI Multiplex

•  Group A Strep Molecular – Waived Methods

•  Rapid Urease

•  VP Molecular


Stop by our conference booth

CPOCT International Symposium – Washington D.C. · September 26-29

ASCP– Baltimore, MD · October 3-5

AABB – Boston, MA · October 13-16

NE Laboratory Conference – Portland, ME · October 16-18

NW Medical Lab Symposium – Portland, OR · October 24-27


Contact WSLH Proficiency Testing – 800-462-5261 –