In the field of laboratory medicine, precision is paramount. From sample collection to final analysis, every step must be carefully controlled to ensure that test results are accurate and reliable. One often underestimated but critical aspect of this chain is the maintenance of the cold chain during storage and transportation of blood samples . A lapse at this stage can compromise sample integrity, leading to erroneous results that may adversely affect patient diagnosis and treatment. The cold chain refers to the temperature-controlled supply chain that ensures biological samples like blood, plasma, and serum are kept within specified temperature ranges from the point of collection through storage and transportation until they reach the testing laboratory. Depending on the type of sample and required tests, the temperature may vary. Maintaining these temperatures prevents the degradation of blood components and preserves the biochemical and cellular characteristics essential for accur...