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HelpTest Code TEGCFF TEG Kaolin w/Functional FIB
Useful For
Level I or Level II trauma patients upon admit to ED or when in surgery and experiencing major bleeding. Thromboelastograph (TEG) is a global assessment of hemostasis and measures the ability of a whole blood sample to form a clot. The TEG assay measures the viscoelastic changes induced by clot formation and evaluates adequacy of coagulation factors and platelet function as well as the rate of formation of a clot, its strength, stability, retraction and lysis.
The four key parameters of the TEG tracing are: (1) R or reaction time to initial clot formation; (2) Angle or rate of clot formation, (3) MA (maximum amplitude) or maximum strength of clot, and (4) LY30 or percent clot lysis 30 minutes after the MA. This panel also includes the Functional Fibrinogen maximum amplitude assay (FF-MA), allowing an estimate of the patient's fibrinogen level. Used in conjunction with established transfusion algorithms, results of the TEG parameters can help guide blood component therapy and assist with management of massive transfusions.
Please refer to the 'TEG Manager - Instructions for Access' for training and obtaining log-in information for remote viewing.
Synonyms/Keywords
TEG, Trauma TEG
Specimen Requirements
| Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|
| Whole Blood | Citrated Blue Top Tube (BTT) | 2 Full tubes, 3.0 mL each | N/A | N/A |
Collection/Processing Instructions
Note: Test is only orderable at MMC Marshfield
Do not use a needle smaller than a 21 gauge for collection. Obtain appropriate volume of blood in first tube labeled DISCARD. Obtain full tubes for sample specimens. It is best to store tubes by laying them on their side, instead of standing them in a rack. Deliver to lab immediately. Sample must arrive in lab within 15 minutes of collection. Cannot be shared with other coagulation tests.
Do not centrifuge sample. Keep sample at room temperature. Send tubes ASAP in 4" or 6" tube system. If using 6", use foam inserts in carrier. Call 1-6363 to notify.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood | Room Temp | 2 hours |
Rejection Criteria
| Sample greater than 2 hours |
|---|
| Improper tube |
| Clotted sample |
| Underfilled tubes |
| Mislabeled/unlabeled tubes |
| Centrifuged sample |
| Refrigerated or frozen samples |
Test Components
Kaolin TEG and Functional Fibrinogen (R, K, Angle, MA, LY30, FF-MA)
Reference Range Information
| Performing Location | Result Code | Reference Range | Units |
|---|---|---|---|
| Marshfield | R | 5.0-10.0 | minutes |
| K | 1.0-3.0 | minutes | |
| Angle | 53-72 | degrees | |
| MA | 50.0-70.0 | mm | |
| LY30 | 0.0-8.0 | % | |
| FFMA | 11.0-29.0 | mm |
Marshfield Labs Performing Department
Marshfield Labs Hematology
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Sunday through Saturday | 1 hour | TEG Viscoelastic Clot Assessment |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 85384 | Pathology Fibrinogen; activity from Functional Fibrinogen | |||
| 85347 | Pathology Coagulation time; activated |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | TEG Kaolin w/Functional FIB |