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HelpTest Code TEGHEP TEG Kaolin w/Heparinase
Useful For
Assessing if prolonged R (Reaction time) on standard TEG is due to circulating heparin. TEG (Thromboelastograph) with Heparinase should be ordered along with the TEG assay when patient is on heparin. TEGHEP assay is also helpful to assess presence of heparin in patients post CABG when heparin rebound is suspected and for patients in cardiovascular surgery while on pump or when TEG6S test is not available.
Please refer to the 'TEG Manager- Instructions for Access' for training and obtaining log-in information for remote viewing.
Synonyms/Keywords
Heparinase TEG, 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) | Full 3 mL tube | 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 with Heparinase (R-H, K-H, ANG-H, MA-H, and LY30H)
Reference Range Information
| Performing Location | Result Code | Units |
|---|---|---|
| Marshfield | R-H | minutes |
| K-H | minutes | |
| Ang-H | degrees | |
| MA-H | mm | |
| LY30H |
% |
|
| No reference ranges for these result codes | ||
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 |
|---|---|---|---|---|
| 85347 | Pathology Coagulation time; activated | |||
| 85525 | Pathology Heparin neutralization |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | TEG Kaolin w/Heparinase |