Home Products Most Popular Contact
No items in your cart.
The page below is a sample from the LabCE course Packaging and Shipping Infectious Materials. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Packaging and Shipping Infectious Materials (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 126 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Histology CE Package$65 Add to cart
Phlebotomy CE Package$55 Add to cart
Individual course$20 Add to cart


Before further discussion of Category A and Category B, it is important to define two additional terms that are used in the classification process.


An infectious substance containing a pathogen that is intentionally propagated, eg, bacteria grown on bacteriological medium. An example of a culture is shown in the image below.

Patient specimen

Patient specimens are human/animal materials collected directly from humans/animals and transported for research, diagnosis, investigational activities, or disease treatment/prevention. Patient specimens include excreta, secreta, blood and its components, tissue and tissue swabs, body parts, and specimens in transport media (e.g., transwabs, culture media, and blood culture bottles).*

*It is important to note that this means specimens that have been collected into these transport media, but have not yet been incubated and micro-organisms are not actively growing in or on the media. If there is growth in the transport media, it is classified as a culture.