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Protocols to Dissolve Amorphous Urate Crystals in Urine

Kristina Jackson Behan1, Michael A Johnston2,3

  • 1Medical Laboratory Sciences Department, University of West Florida, Pensacola, Florida, USA.

Laboratory Medicine
|October 13, 2021
PubMed
Summary

Prewarming urine specimens effectively dissolves amorphous urate crystals, improving urinalysis clarity. Sodium hydroxide can dissolve urates but negatively impacts white blood cell and red blood cell counts.

Keywords:
amorphous uratescrystal solubilitymicroscopyurinalysisurine crystalsurine sediment

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