Which type of test typically requires the transport of specimens at specific temperature conditions?

Transporting specimens at specific temperature conditions is crucial for maintaining the integrity and stability of the samples, which is particularly true for frozen specimens testing. Certain laboratory analyses, such as those involving biochemical markers or specific cellular components, require specimens to remain frozen to prevent degradation or alteration of the sample. If these specimens thaw during transport, it can lead to inaccurate test results due to changes in the chemical or physical properties of the sample.

While blood glucose tests, hormone tests, and microbial cultures may have specific handling guidelines, they generally do not require the stringent frozen conditions that frozen specimens do. Blood glucose tests can be performed on samples stored at room temperature for a limited time, hormone tests often have their own specific requirements for transport but do not typically involve freezing, and microbial cultures require refrigeration or room temperature but not freezing. Thus, the requirement for frozen transport sets frozen specimens testing apart as the option that specifically necessitates careful temperature control during transport.