Lab test interpretation

Starch Grains and Talc in Urine Sediment Microscopy

Learn how starch grains and talc appear under urine sediment microscopy: concentric layering of the artifact and confirmation using Lugol's solution.

🔬 Urine sediment microscopy. Starch grains or talc from powder. During urine collection, foreign elements may get into the sediment. When a drop of Lugol’s solution is added, starch grains are stained black by iodine.

🙏 The photo and description were kindly provided by biologist Anna Feditskaya, Lugansk.