Sign in →

Test Code SQ FLOBL, EPIC LAB2855 Flow Cytometry, Blood (T & B) (UWH FLOW)


Flow Cytometry

Antigens analyzed are selected based on the number of cells available, morphologic assessment, and patient diagnosis.

Performing Laboratory

University of Wisconsin Hospital and Clinics

Specimen Requirements

Specimen must arrive at the University of Wisconsin Hospital and Clinics within 4 hours of draw. Specimen accepted Sunday through Thursday anytime. Specimen must be received by 2 p.m. on Friday or the day before a holiday.


Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA)

Specimen Volume: 4 mL

Specimen Minimum Volume: 2.5 mL

Collection Instructions:

1. Do not centrifuge.

2. Specimen >24 hours old at time of analysis are not acceptable.

Additional Information:

1. WBC and differential results, and an unstained slide must be sent with the specimen

2. Indicate patient’s diagnosis on requisition.

Specimen Transport Temperature


Reference Values

A hematopathologist’s written, interpretive report is issued as a separate report.

Reporting Title

Flow Cytometry - Blood  (T & P)

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

CPT codes dependent on testing performed.