Medical Laboratory Professionals Week
19-25 April 2026
Happy Lab Week! This annual celebration shines a well-deserved spotlight on the invaluable role laboratory professionals play in health care and patient advocacy. From routine testing to complex diagnostics, laboratory teams bring a remarkable breadth of expertise to the front lines of disease management and the fight against public health threats. As health care continues to evolve and grow more complex, your skill, precision, and unwavering dedication are more important than ever, helping improve outcomes and protecting both individual and public health. CLSI proudly salutes you and thanks you for your commitment to making the world healthier.
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 Stanford Health Care for submitting this photo during Lab Week 2025!
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 12 May, CLSI is hosting a full special half-day virtual program designed specifically for lab professionals like you, offering expert-led insights, hands-on learning. CLSI Applied 2026 has an amazing agenda where you’ll learn about AI and technology innovations, regulatory expectations, critical quality concerns, and impacts on clinical decision-making.
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)
April E-News Riddle Answer:
A blood sample!
*Medical Laboratory Professionals Week, now in its 51st year, takes place the last full week in April and is coordinated by a collaborative committee with representatives from
18 national clinical laboratory organizations.
