What is a primary purpose of an Analytical Run?

• A. To calibrate the instrument and verify performance
• B. To run a single specimen for test validation
• C. To report results for a group of specimens analyzed together
• D. To assess reagent stability over time

Answer: (C)

An Analytical Run is a batch where multiple specimens are analyzed in one sequence using the same method and instrument. Its main goal is to generate and report the results for that group of specimens, ensuring consistency across the batch. The run is typically designed so that calibration and quality-control checks are performed within the same session to verify that the instrument and method are performing correctly for all samples in that set. While calibration and controls may be part of the run, the essential purpose is to produce and deliver results for the group of specimens analyzed together. This differs from calibrating the instrument alone, validating a single specimen, or studying reagent stability over time.