What is the maximum time blood samples should be stored before analysis?

The maximum time blood samples should be stored before analysis is critical to ensure the accuracy and reliability of test results. Choosing to store samples for less than 2 hours for most tests is based on the fact that many biochemical processes can alter the composition of blood if samples are left too long before analysis. For example, glucose levels can decrease due to glycolysis, and certain cells can degrade, which can lead to erroneous results. Prompt processing of blood samples ensures that the integrity of the analytes is maintained.

While some tests may have specific requirements that allow for longer holding times or special storage conditions, the less than 2-hour guideline is a general best practice for a wide range of tests. This allows laboratories to achieve the highest accuracy in diagnostic testing, reflecting the patient's current condition reliably.

Other options suggest shorter time limits or conditions that may not be applicable across all types of tests, emphasizing the importance of adhering to established protocols in phlebotomy and laboratory practices. There are indeed tests that allow for longer storage under certain conditions, but for the majority of tests, the less than 2 hours rule is a broadly accepted standard to maintain sample quality.