Updated April 4, 2025

Domestic 

Due to severe weather impacting carrier hubs across the United States, delays are anticipated through the weekend. The Mayo Clinic Laboratories’ Global Logistics team is diverting work to other commercial shipping options.   

We understand that these options are not available in all market areas. If other options are not available in your area, your route will be canceled, and we will ask you to hold any samples at your location. You will be notified via Message Center or a phone call if your route is canceled.   

Additional information: 

• Due to carrier restrictions, Category A samples cannot be shipped at this time.  
• Clients that ship on their own should continue to hold your specimens.  
• Referral testing, tech-only stain slides, and refrigerated supplies will be held at Mayo Clinic Laboratories at this time. 

We will provide an update on Monday, April 7. For immediate needs, contact Customer Service at 800-533-1710. Thank you for your understanding as we work to protect your patient specimens. 

International 

Severe weather is impacting carrier hubs across the United States, causing delays. To safeguard your samples, Mayo Clinic Laboratories strongly recommends the following guideline for international shipments:  

• For shipments with one-, two-, or three-day transit times, do not ship at this time. 

We will provide an update on Monday, April 7. For immediate needs, contact Customer Service at 800-533-1710. Thank you for your understanding as we work to protect your patient specimens. 

Updated April 3, 2025

Domestic 

Due to severe weather affecting the FedEx hub in Memphis, Tennessee, delays are anticipated. The Mayo Clinic Laboratories’ Global Logistics team will be diverting work to other commercial shipping options.  

We understand that these options are not available in all market areas. If other options are not available in your area, your route will be canceled, and we will ask you to hold any samples at your location. You will be notified via Message Center or a phone call if your route is canceled.  

Additional information:

• Due to carrier restrictions, Category A samples cannot be shipped at this time. 
• Clients that ship on their own should not ship via FedEx. 
• Rereferral testing, tech-only stain slides, and refrigerated supplies will be held at Mayo Clinic Laboratories at this time.
• As a preventative effort to reduce potential recollections, consider extending the hold time for samples that were shipped on April 2^nd.

We will provide ongoing updates as needed. For immediate needs, contact Customer Service at 800-533-1710. 

International 

Severe weather has impacted the FedEx hub in Memphis, Tennessee. To safeguard your samples, Mayo Clinic Laboratories strongly recommends the following guideline for international shipments: 

• For shipments with one-, two-, or three-day transit times, do not ship at this time.

We will provide ongoing updates as needed. For immediate needs, contact Customer Service at 800-533-1710.