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Test Code TEGMT TEG3 Complex-Trauma, MTP, etc.

Important Note

For bleeding patients who will possibly need cryoprecipitate transfusion, > 2 RBC units/hour, and/or MTP activation.

Specimen Type

Blood

Container

2 light blue top tubes, 3.2% sodium citrate, PROPERLY FILLED TO THE FILL LINE.

Preferred Volume

5.4 mL

UCMC Collection Instructions

  • Using 21G or larger needle, collect two 2.7 mL light blue top tube after 3 mL discard (5 mL discard if from indwelling catheter). Gently invert (do not shake!) sample tube 5 times. Sample must NOT be refrigerated or exposed to excessive heat.

  • Send properly labeled specimen (ideally Sunquest label) to Coagulation lab (station 904) without delay.

  • Test may only be added on to an existing TEG order up to 2 hours following the time of blood draw.

Availability

TEG 5000 testing is performed 24/7 (i.e., all 3 shifts, Monday through Sunday).

 

Coagulation Laboratory (contact phone # 2-1315) must be notified 30 minutes ahead of sending sample to laboratory, or run will be delayed.

Turnaround Time

2 hours

STAT Availability

No

Test Methodology

Thromboelastography, MTP, Trauma, TEG

Additional Information

All 3.2% sodium citrate light blue top tubes require a ratio of 9 parts blood to 1 part anticoagulant (example: a 3.0 mL tube requires 2.7 mL blood added to 0.3 mL of anticoagulant).

 

Please document any drugs affecting hemostasis as well as any recent transfusions/fluid resuscitations in the relevant parts of this order in EPIC.

CPT Code

85347, 85374, 85384

Test Includes

1. TEG Kaolin: R-time, K-time, Angle, MA and LY30.

2. Rapid TEG: ACT, R-time, K-time, angle and MA.

3. TEG Functional Fibrinogen: MA and Fibrinogen Level.

 

4. Pathologist’s Interpretation: if selected, will be resulted into EPIC by the end of the business day following TEG 5000 testing.

In instances where more immediate interpretations may be needed, please contact:

 

                Monday – Friday, 8AM – 5PM: Coagulation Laboratory at 2-1315

                All other times:  Laboratory Medicine Resident On-Call (LMROC) at Pager 7910.

 

 

Critical Results

N/A

Reference Range

TEG Kaolin:

R-time: 4.0-8.0 minutes

K-time: 1.0-2.1 minutes

Angle: 60.0-73.0 degrees

MA: 57.0-74.0 mm

LY30: 0.0-5.0%

 

Rapid TEG:

TEG ACT: 74-128 seconds

R-time: 0.2-0.9 minutes

K-time: 0.6-1.8 minutes

Angle: 70.0-82.0 degrees

MA: 57.0-72.0 mm

 

TEG Functional Fibrinogen:

MA: 13.0-32.0 mm

Fibrinogen Level: 250.0-600.0 mg/dL

Minimum Volume

2.7 mL

 

 

 

 

 

Coverage Information

CMS has established a national coverage policy (NCD) for Medicare for this test as of November 25, 2002. Please document medical necessity. For more details click this link:  https://www.cms.gov/medicare-coverage-database/details/ncd-details.aspx?NCDId=80&ncdver=1&bc=AgEAAAAAAAAA&

Synonyms

Thromboelastograph, TEG, MTP, Trauma