Which substances are common toxins detected in urinalysis?

• A. Lead and other heavy metals
• B. Pesticides
• C. Alcohol
• D. Creatinine

Answer: (A)

In urinalysis for toxin exposure, heavy metals are a common focus because the kidneys filter and excrete metals like lead, mercury, and arsenic. Detecting these metals in urine helps confirm recent or ongoing exposure and guides treatment, especially in occupational or environmental cases. The testing is done with specialized analytical methods, and levels can indicate the degree of exposure and urgency of intervention.

Pesticides can be measured in urine, but such testing is more specialized and not part of routine urinalysis. Alcohol is typically assessed in blood or breath tests rather than standard urine screens. Creatinine, on the other hand, is a normal waste product used to gauge kidney function and urine concentration, not a toxin to be detected.