It’s very common for practices to ship blood samples and specimens to full service laboratories for off-site testing. In many cases a satellite practice will want to utilize the full service lab across town, which sounds easy enough, but definitely includes some safe shipping considerations.
Safe ground transportation of specimens to and from laboratories is governed by regulation issued by the Department of Transportation (DOT) and the U.S. Postal Service (USPS). The DOT divides it’s regulations into nine classes, but labs are primarily concerned with Class 6.2 – Infectious Substances  and Class 9 – Miscellaneous  (which includes dry ice, often used for preservation).
Labs typically purchase packaging materials such as sealable plastic bags and boxes for transporting blood specimens. These labs rely on the fact that the manufacturer has met requirements for these materials; their main duty is to use the correct packaging for the materials being shipped, and to label packages properly.
When lab specimens are transported across a public street or highway they are covered by the DOT requirements. This means they must be boxed and labeled appropriately for a biological specimen (unless it meets the definition of infectious). Coolers with the biohazard label on them that are secured in the car (usually on the floor of the back seat) will meet those requirements.
Other considerations for ground shipment of biological substances:
- Use triple packaging consisting of a leak-proof primary receptacle (e.g. a blood tube), a leak-proof secondary package (e.g. sealable plastic bag), and an outer package (e.g. cardboard box or cooler if you are transporting it yourself)
- Place absorbent materials between the primary receptacle and the secondary packaging and be sure to make sure there is no contact between primary receptacles if they are placed in the same sealable plastic bagg
- Secure the secondary packaging with cushioning material (e.g. bubble wrap)
- When you are done, the package should be able to withstand a drop from about four feet
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