Which urinalysis finding indicates possible infection or contamination?</n>

• A. Cloudy urine (turbidity)
• B. Clear, pale yellow urine
• C. Increasing urine osmolality
• D. Low urine specific gravity

Answer: (A)

Cloudy urine signals possible infection or contamination because turbidity often reflects the presence of white blood cells, bacteria, and other particulates (pus or mucus) in the sample. This contrasts with clear, pale yellow urine, which is typically normal, and with higher osmolality or low specific gravity, which indicate concentration or hydration status rather than infection. While cloudiness raises suspicion for infection or contamination, it isn’t definitive on its own and should be followed by confirmatory tests (like leukocyte esterase, nitrites, or a urine culture).