Medical Laboratory Professionals Week 2025
20-26 April 2025
It's time to honor the important role laboratory professionals like you play in the lives of patients around the world.
Laboratory professionals encompass a wide variety of specialists, including clinical chemists, molecular biologists, and the microbiologists whose work supports the fight against antimicrobial resistance (AMR).
During this Medical Laboratory Professionals Week, we want to show our appreciation for you, the subject matter experts and members who help us make the world a healthier place. Your contributions of time and resources are invaluable and help us fulfill our mission to “develop clinical and laboratory practices and promote their use worldwide."

Lab Week is your time to shine—celebrate
with CLSI online!
CLSI is one of 18 laboratory medicine organizations responsible for coordinating this annual celebration of your profession.*
Join us by participating in the activities below!
Share a Lens Into
Your Lab
Share a photo of you and/or colleagues in your lab (bonus if you're using CLSI documents) for a chance to win a $100 gift card to the CLSI Swag Shop! Submit using this form, or by tagging us on Facebook, Instagram, or LinkedIn; hashtag #CLSILabWeek.
Thanks to Salem VA Health Care System, last year's Lab Photo Winner!

Show off Your
Lab Smarts
Try your hand at one of these Lab Week puzzles. Share with your team for some friendly competition.
Celebrate Your Impact
Implemented CLSI standards in your laboratory? Successfully rolled out new quality practices? We’d like to hear about it!
Share your story for a chance to win $100 at the CLSI Swag Shop.
Learn about other success stories and case studies here.
Learn With CLSI
On April 29, CLSI is hosting a full special half-day program designed specifically for lab professionals like you, offering expert-led insights, hands-on learning, and the latest compliance strategies—all in one place. Make sure your lab is fully prepared. (Plus, you can get up to 8 P.A.C.E.® credits!)
Save Your Spot!
Join the ASCLS
Lab Week Fun Run
Participate in the 5K (3.1mile) virtual fun run. Have your friends and colleagues join. You can participate anywhere, anytime. Funds raised support laboratory professionals attend laboratory conferences.
Register here.
Show Your Pride with CLSI Swag
We're so excited to share our new Swag Shop with you! From cozy tees to must-have accessories, the CLSI Swag Store has all the gear you need to show off your love for standards, style, and CLSI!
Browse the collection.
Every treatment journey starts at the same point: The diagnosis. No matter the medical pathway, reliable laboratory testing can mean the difference between a smooth or a difficult journey. CLSI celebrates the Laboratory Professionals who, through their dedication to their skilled practice, are the heroes that make sure that every patient starts off in the right direction, and on a foundation of reliability and quality.
—Barb Jones, CEO, Clinical and Laboratory Standards Institute (CLSI)

*Medical Laboratory Professionals Week, now in its 50th year, takes place the last full week in April and is coordinated by a collaborative committee with representatives from 18 national clinical laboratory organizations.