Sign in →

Test Code TEG TEG Citrated Kaolin on 5000

Important Note

For internal ordering at MMC Marshfield only. Not available to outreach clients.

Useful For

Assessing hypo- and hypercoagulable states in patients in ICU; aid in the rapid assessment of hemostatic imbalance and guide appropriate blood component therapy when managing perioperative bleeding in postsurgical patients; and monitoring hemostasis in patients with end-stage liver disease who need interventional procedure and/or management of 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.

 

Note: If patient is on heparin, order TEGHEP along with TEG. 

 

Please refer to the 'TEG Manager - Instructions for Access' for training and obtaining log-in information for remote viewing. 

Synonyms/Keywords

TEG, Thromboelastography

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 hour

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 (R, K, angel, MA, LY30)

Interferences

Heparin

Reference Range Information

Performing Location Result Code Reference Range Units
Marshfield RTIME 5.0-10.0 minutes
KTIME 1.0-3.0 minutes
Angle 53.0-72.0 degrees
MAXAMP 50.0-70.0 mm
LY30 0.0-8.0 %

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  

Ordering Applications

Ordering Application Description
Cerner TEG Citrated Kaolin on 5000

Related Tests