Which of the following is an example of improper handling that can cause specimen rejection?

Delayed delivery of the specimen to the laboratory is a critical factor that can lead to specimen rejection. Timeliness is crucial in laboratory testing, as many analyses depend on the integrity and viability of the specimen. When a specimen is not delivered promptly, it may undergo changes due to factors such as temperature fluctuations or degradation over time, which can compromise test results. For instance, certain blood components may break down or become unstable if not analyzed within a specific timeframe, leading to potential inaccuracies in diagnosis or treatment.

On the other hand, timely delivery, correct labeling, and using the appropriate collection tube are all essential practices that support the accurate processing and analysis of specimens. These practices ensure that the specimen is properly identified and preserved, minimizing the opportunity for errors that could lead to rejection. Therefore, the importance of quick and efficient specimen transport cannot be overstated, as it directly impacts the reliability of laboratory results.