Time Sensitive


Oncology Test Request Form Recommended (ARUP form #43099)

Ordering Recommendation

Aid in diagnosis and classification of hematopoietic neoplasms presenting with prominent eosinophilia. Does not detect rearrangements associated with chronic myelogenous leukemia.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Non-diluted bone marrow aspirate collected in a heparinized syringe. Also acceptable: Green (Sodium Heparin).

Specimen Preparation

Bone Marrow: Transfer 3 mL bone marrow to a Green (Sodium Heparin) (Min: 1 mL).
Whole Blood: Transport 5 mL whole blood. (Min: 2 mL)

Storage/Transport Temperature

Room temperature.

Unacceptable Conditions

Paraffin-embedded specimens. Clotted specimens.


Ambient: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable


Fluorescence in situ Hybridization (FISH)




3-10 days

Reference Interval

By report

Interpretive Data

Probes included: PDGFR-alpha, PDGFR-beta, and FGFR1.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Analyte Specific Reagent (ASR)


A processing fee will be charged if this procedure is canceled, at the client's request, after the test has been set up, or if the specimen integrity is inadequate to allow culture growth. The fee will vary based on specimen type.

Other specimen types may be acceptable, contact the Cytogenetics Laboratory for specific specimen collection and transportation instructions.

If cell pellets or dropped cytogenetic slides are submitted, processing fee will not apply.

This test must be ordered using Oncology test request form #43099 or through your ARUP interface.

Hotline History


CPT Codes

88271 x3; 88275 x3


Component Test Code* Component Chart Name LOINC
2002379 Eosinophilia Panel by FISH
2002380 EER FISH EOS P
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • FISH, Myeloproliferative Neoplasms (Eosinophilia)
Eosinophilia Panel by FISH