Home Urinalysis Test Strip Color Chart and
2014-5-8 · should be read within 60 to 90 seconds to discriminate between positives and negatives. Leukocytes should be read between 90 and 120 seconds. 6-Carefully compare the results with the color chart on the container, keeping the strip horizontally and under a good light source. Proper reading time is critical for optimal results.
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