What is the most common analytical error in the laboratory setting?

In the laboratory setting, the most common analytical error is often related to the integrity of the specimens being tested. When specimens are not checked for integrity, it can lead to erroneous results that compromise the quality of patient care. Specimen integrity involves factors such as proper collection, storage, transport conditions, and whether the specimens were subjected to any interference or contamination.

If a specimen is hemolyzed, improperly stored, or collected in the wrong container, the results derived from that sample may not reflect the true physiological state of the patient. For instance, hemolysis can interfere with the measurement of certain analytes, leading to false elevations or reductions in test results. Therefore, routinely checking specimen integrity is crucial for ensuring accurate and reliable laboratory results.

While other factors, such as failure to document results, improper sample collection, and incorrect calibration of instruments, are significant concerns in lab operations, they are often less frequent than issues arising from specimen integrity. Each of these factors can contribute to errors, but ensuring that specimens are handled appropriately right from the start is fundamental to minimizing analytical errors and delivering quality laboratory services.