Blood collection tubes used for hepatic panel analysis are typically topped with a gold or tiger-top stopper. These contain a separating gel and clot activator, producing serum upon centrifugation. Serum, the liquid portion of blood remaining after clotting, is the preferred specimen type for most hepatic assays as it lacks clotting factors that might interfere with certain tests. While other tube types may occasionally be employed, the gold/tiger-top is standard due to its compatibility with the widest range of analyses.
Standardized specimen collection is critical for accurate and reliable test results. Using the correct tube ensures minimal pre-analytical error, allowing clinicians to confidently interpret the results and make informed decisions regarding patient care. Historically, diverse collection methods and varying tube types contributed to inconsistencies. The standardization to separator tubes with clot activators has significantly improved the reliability and comparability of results across laboratories and over time.
