Leukocyte esterase — lab reference
Some search terms matchedInterpret with microscopy, symptoms, nitrite, and culture.
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What’s searchable?Interpret with microscopy, symptoms, nitrite, and culture.
A negative result does not exclude UTI.
Persistent microscopic hematuria requires risk-based evaluation.
Interpret with symptoms, culture, contamination, and other sediment findings.
Small numbers may be nonspecific; other cast types require context.
A1 <30; A2 30-300; A3 >300. Persistence ≥3 months matters for CKD classification.
Use laboratory and indication-specific thresholds; consider timed collection when needed.
Collection completeness must be assessed.
Ranges vary across the follicular phase and by assay.
Interpret with cycle timing and ovulation status.
Method-dependent; LC-MS/MS is preferred at very low values.
Cycle day and exogenous progesterone timing matter.
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