What are the Limitations of Urine Analysis in Epidemiology?
Despite its advantages, urine analysis also has some limitations: - Variability: Factors such as hydration status, diet, and time of collection can affect urine composition and concentration. - Contamination Risk: Urine samples can be easily contaminated, which may lead to inaccurate results. - Short Detection Window: Some substances are only detectable in urine for a short period, limiting its usefulness for long-term monitoring.