Final answer:
Cryoglobulins must be placed in an ice bath within 30 minutes after collection to prevent precipitation and ensure accurate lab analysis.
Step-by-step explanation:
When preparing for transport, cryoglobulins must be placed into an ice bath within 30 minutes after collection. Cryoglobulins are proteins, typically antibodies, that precipitate or clump together when cooled and dissolve back into the solution when the specimen is warmed. This trait can lead to potential blockages in blood vessels when present in high concentrations in the body. To ensure accurate testing and prevent the cryoglobulins from precipitating before they can be analyzed in the lab, it is important to maintain the temperature of the sample from the time of collection until analysis.