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Test Code LAB15666 TBI Panel

Additional Codes

Traumatic Brain Injury Panel

Collection:

Specimen: Blood 

Container: Light Green W/Gel (Lithium Heparin) or SST. 

Specimen Volume: 4 mL; Minimum 1.5 mL

Stability:

Specimens should stored at room temperature (15 to 30°C) prior to testing.  Refrigerated specimens MUST be recentrifuged prior to analysis. 

Turnaround Time (TAT):

ROUTINE/STAT: 3 HOURS

 

Test Availability:

Daily / 24 Hours / Available STAT

Performing Laboratory Section:

CHEMISTRY / UMC MAIN LABORATORY

Reference Interval:

GFAP: <35 ng/L

 

UCH-L1: <400 ng/L

 

TBI: Negative

Interpretive Data:

A negative TBI test result is obtained only when both GFAP and UCH-L1 are below their respective assay cutoffs. A negative result is associated with the absence of acute intracranial lesions on head CT.

 

This test is intended for use only in adult patients, presenting within 12 hours of suspected mild TBI, defined as GCS score 13–15.

 

TBI is performed on the Abbott Diagnostics iSystem.