præanalytiske

Præanalytiske refers to all activities, procedures, and considerations that occur before the actual analysis of biological samples in a laboratory setting. This phase is crucial in ensuring the accuracy and reliability of diagnostic test results and includes sample collection, handling, transportation, storage, and preparation.

The præanalytiske phase significantly influences the outcome of subsequent analytical processes. Factors such as the method of blood draw, type of collection tube, timing of sample collection, and conditions during transport (e.g., temperature, agitation) can impact the stability of analytes. Proper identification of samples, correct labeling, and adherence to protocols are essential to prevent errors.

Common issues during the præanalytiske phase include hemolysis, contamination, clot formation, and delays in processing, each of which can lead to erroneous results. To minimize such risks, laboratories implement standardized procedures, staff training, and quality control measures.

Overall, the focus on the præanalytiske phase highlights the importance of meticulous pre-analytical practices in clinical laboratory medicine. Proper management of this phase enhances the accuracy of diagnostics, informs appropriate treatment decisions, and improves patient outcomes.