What Are the Advantages and Limitations of Urine Tests?
Advantages:
Non-invasive and easily obtainable samples. Can detect a wide range of substances. Useful for both recent and past exposure assessment. Cost-effective compared to other testing methods.
Limitations:
Short detection window for some substances. Possibility of sample adulteration or substitution. Potential for false positives or negatives, particularly with immunoassay tests. Requires proper interpretation by trained professionals to avoid misdiagnosis.