Leukocyte esterase — lab reference
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THE PURSER WELLNESS LIBRARY
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What’s searchable?Ask your clinician to read this result with microscopy, symptoms, nitrite, and culture.
A negative result does not exclude UTI.
Persistent microscopic hematuria requires risk-based evaluation.
Ask your clinician to read this result with symptoms, culture, contamination, and other sediment findings.
Small numbers may be nonspecific; other cast types require context.
Single values are pulse- and timing-sensitive; confirm the clinical question.
Your lab may use its own range. Symptoms, medicines, and the types of white blood cells also matter.
Altitude, smoking, hydration, androgen therapy, and pregnancy may shift values.
Ask your clinician to consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
Hydration and altitude are major modifiers. Ask your clinician to review alongside hemoglobin and RBC indices.
Macrocytosis and microcytosis require cause-specific interpretation.
The test method matters. Ask your clinician to review with MCV and MCHC.
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