Lab Test

Eosinophils in Urine Sediment

Urine, Eosinophils

Test Codes

Antrim #20118, EPIC: LAB5163

Specimen Collection Criteria

Collect: 50 mL random urine in a screw-capped container (preferred) or other sterile collection cup. (Minimum: 10 mL)

Specimens should be delivered to the Laboratory within one hour of collection to prevent leukocyte lysis.

Physician Office/Draw 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). (Minimum: 10 mL)

Rejection Criteria

Specimens exceeding recommended time limits (one hour at room temperature, three hours refrigerated).

Inpatient Specimen Preparation

Transport specimen to the Laboratory immediately after collection for processing.


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


Dearborn Hematology Laboratory
Farmington Hills Hematology Laboratory
Grosse Pointe Hematology Laboratory
Royal Oak Hematology Laboratory
Taylor Hematology Laboratory
Trenton Hematology Laboratory
Troy Hematology Laboratory
Wayne Blood Bank


Sunday – Saturday, 24 hours a day.
Results available within 8 hours.

Reference Range

None seen.

Test Methodology

Wright-Giemsa Stain, Manual Microsopy.


Increased numbers of eosinophils may be found in urine from patients with tubulointerstitial disease associated with hypersensitivity to drugs such as penicillin and its analogues.

CPT Codes



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