Specimen Collection Manual and Test Catalog
EOSINOPHILS, URINE
Geisinger Epic Procedure Code: LAB2223 Geisinger Epic ID: 37249Random urine
5 mL random urine; minimum 2 mL.
Freshly voided urine should be delivered to the lab within 2 hours of collection.
Testing only performed at GMC Monday-Friday day shift. Collection for other sites limited to Sunday-Thursday due to stability issues and transportation availability. Patient may present at GMC on Friday for testing if required.
Room temperature if received in testing laboratory within 2 hours of collection. Refrigerate for up to 24 hours.
Room temperature: 2 hours. Refrigerated: 24 hours.
Highly turbid urines. Urines greater than 24 hours old.
No eosinophils seen.
Urines with a pH greater than 7.0 may result in poor staining of eosinophils.
Turnaround Times:
| Priority | TAT |
| Routine | 4 Hours |
| STAT | 1 Hours |
| Extended TAT | 3 Days |
| Timed | 60 Minutes |
| Pending Discharge | 45 Minutes |
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Presence or absence of eosinophils.
Hansel stain for urine eosinophils, EOSU
The presence of eosinophils in the urine is suggestive of allergic conditions, asthmatic disorders, and parasitic infections. There are also increased numbers found in the urine in cases of acute interstitial nephritis.