What is the proper method for storing blood samples collected in yellow stoppered vacutainers?

The proper method for storing blood samples collected in yellow stoppered vacutainers involves refrigerating the samples and submitting them to the lab as soon as possible. This approach is essential because refrigeration helps preserve the integrity of the blood samples, slowing down any biochemical processes that might otherwise alter the composition of the sample. Prompt submission to the laboratory ensures that the samples can be analyzed while they are still in a suitable condition, thereby improving the accuracy and reliability of the test results.

In contrast, freezing blood samples immediately may lead to cell lysis or other changes that can compromise the results. Storing samples at room temperature for an extended period is generally not advisable as it could lead to bacterial growth or degradation of certain components. Keeping samples in a dark place does not significantly impact their stability compared to the need for proper temperature control, which is why refrigeration is the preferred method for these types of specimens.