Hemosiderin in Urine Sediment
Urine Iron Stain, Urine Hemosiderin, Prussian Blue Stain, Urine, Hemosiderin, Urine , Antrim #20130, EPIC: LAB5150, SOFT: HMSDU
Specimen Collection Criteria
Collect: 50 mL random urine in a screw-capped container (preferred) or other sterile collection cup. (Min: 10 mL)
Specimens should be delivered to the Laboratory within one hour of collection to prevent leukocyte lysis.
Physician Office/Drawsite Specimen Preparation
Arrange for transportation to the Laboratory prior to specimen collection. Maintain specimens refrigerated (2-8°C or 36-46°F) prior to transport.
Preparation for Courier Transport
Transport: 50 mL urine, refrigerated (2-8°C or 36-46°F). (Min: 10 mL)
- Specimens exceeding recommended time limits (one hour at room temperature, three hours refrigerated).
- Specimens with low cell counts or unacceptable volume may give unsatisfactory results but testing will still be attempted.
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 1 hour
Refrigerated (2-8°C or 36-46°F): 3 hours
Frozen (-20°C/-4°F or below): Unacceptable
Specimen Storage in Department Prior to Disposal:
Refrigerated (2-8°C or 36-46°F): 7 days
Royal Oak Hematology Laboratory.
Troy Hematology Laboratory.
Sunday - Saturday.
Results available in 24-72 hours.
Cytocentrifuge smears of urine sediment and the Prussian-Blue stain.
Hemosiderin is present in diseases involving a true siderosis of kidney parenchyma (hemochromatosis). It is also present 2-3 days after an acute hemolytic episode that produces hemoglobinemia and hemoglobinuria. Hemosiderin granules are found in intact renal tubular epithelial cells or occasionally in casts and may also be seen extracellularly.
This assay aids in the detection of hemochromatosis and hemoglobinuria. Hemosiderin is typically found in urine of acid and neutral pH, but not alkaline pH.
Antrim #20130, EPIC: LAB5150, SOFT: HMSDU
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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills,
Grosse Pointe, Royal Oak, and Troy campuses.