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HelpTest ID EOSU1 Eosinophils, Random, Urine
Method Name
Hansel Stain
Specimen Required
Container/Tube: Unstained cytospin slide
Specimen Volume: 1 slide
Collection Instructions:
1. Collect a random urine specimen.
2. Centrifuge 10 mL of a random urine collection.
3. Pour off supernatant. Assess urine sediment for presence of white blood cells (WBC). If no WBC are seen, the eosinophil test cannot be performed. If WBC are present, prepare slides using the centrifuged sediment.
4. The unstained slide should be prepared within 2 hours of collection. Only an unstained slide will be accepted. Any other specimen, including the raw urine specimen, will be rejected.
5. Centrifuge urine in cytospin centrifuge at speed of 750 rpm for 5 minutes.
6. Slides need to be labeled with patient name and date of birth
7. Guidelines for slide preparation. Use the sediment to prepare slides as follows:
a. 150 mcL of sample for 1 to 3 WBC/high power field (hpf)
b. 100 mcL of sample for moderate to normal sediment (<50 cell/hpf)
c. 50 mcL of sample for heavier sediment (>50 cells/hpf)
d. 25 mcL for packed fields of sediment
Reporting Name
Eosinophils, USpecimen Type
UrineSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Ambient (preferred) | 14 days | SLIDE |
| Frozen | 14 days | SLIDE | |
| Refrigerated | 14 days | SLIDE |
Report Available
Same day/1 dayPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| EOSU1 | Eosinophils, U | 32014-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| EOSU1 | Eosinophils, U | In Process |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Useful For
Investigation of possible acute interstitial nephritis
Day(s) Performed
Monday through Sunday
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
85999
Specimen Minimum Volume
See Specimen Required
Reference Values
0%