Blood sample collection and preparation are meticulous processes that leverage specialized equipment, such as capillary tubes for microsampling, hematocrit tubes for measuring packed cell volume, and blood collection tubes for various analyses. These tools are integral for preserving the integrity of blood specimens, which is critical for the reliability of hematological tests, disease markers, and pharmacological assessments. Precision in these procedures supports advancements in clinical diagnostics, contributing significantly to patient-specific treatments and ongoing medical research.