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Sample Page

The page below is a sample from the MediaLab course, The Urine Microscopic: Microscopic Analysis of Urine Sediment.

Learn about Compliance & CE courses available for clinical laboratories and individual medical technologists.

Ammonium Biurate Crystals

Ammonium biurate crystals commonly occur in the form of "thorn apples," as shown here, or in polyhedral shapes. They are deeply colored from a dark yellow to brown. They sometimes appear in clumps or clusters. This crystal occurs only in stale urine.



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