What factors can affect the accuracy of laboratory tests?

The accuracy of laboratory tests is influenced by a variety of factors, and one of the most significant considerations is the conditions under which samples are handled and stored. Proper sample handling ensures that the integrity of the sample is maintained from the moment it is collected until the analysis is performed. Factors such as temperature, light exposure, and contamination can all impact test results if not properly managed.

Additionally, the calibration of instruments is crucial for accurate measurements. Instruments must be regularly calibrated to ensure they provide readings that reflect true values. Inaccurate calibration can lead to systematic errors, affecting the reliability of the test outcomes. Furthermore, operator error can also play a role; if a technician misreads a measurement or misprepares a sample, it can compromise the analysis.

By recognizing that both sample handling and calibration of instruments influence the accuracy of tests, we understand that comprehensive attention to these areas is essential for reliable laboratory results. Therefore, choosing the option that includes both factors reflects a complete understanding of what can affect test accuracy.