In the mailing of blood specimens, the primary aim of using a second durable container is to ensure what?

Using a second durable container for mailing blood specimens serves the primary purpose of preventing damage during transport. This additional layer of protection is crucial as it helps to safeguard the integrity of the specimens against potential physical impacts or environmental factors that could occur during transit. With the increase in handling and various transport conditions, such measures reduce the risk of breakage or leakage, which could invalidate the sample or compromise the accuracy of laboratory results.

While cost-effectiveness, compliance with regulations, and improved laboratory analysis are important considerations in the overall process of specimen transport, the immediate and most vital concern in this context is the physical protection of the specimens to ensure they arrive at the laboratory in a viable condition for analysis.