Sign in →

Test Code TEG-Hep TEG-Heparin

Aliases

TEG -Global Hemostasis

Useful For

CK-R represents the initiation phase of coagulation trigged by enzymatic clotting factors and culminating with the initial fibrin formation. 

 

CKH-R represents the reaction time between the initiation of the clot and the point where the tracing reaches 2mm of amplitude, with heparinase to neutralize the effect of heparin. 

 

CKH-MA represents the combination of fibrin and platelets to clot strength. 

 

CKH-LY30 is the clot lysis, with heparinase to neutralize the effects of heparin, expressed as a percent reduction in clot strength 30 minutes after MA is reached.  

 

CRTH-MA is the maximal amplitude of the TEG tracing, measured in mm, and reflects the maximum clot strength.

 

CFFH-MA measures the functional fibrinogen contribution to clot strength.

 

Patient Preparation

Avoid tissue contaminants or interfering substances, Using a 21 gauge needle or large, venipuncture samples- draw 2 blue tops and discard the first. Line draws discard the first 10mL of blood. 

Special Collection Instructions

Unspun specimen must arrive within 1 hour of draw. 

Collection Method

Use of 21 gauge or larger. Full tube. Mix well by inversion.

 

Minimum Volume

Tube filled to Proper 9:1 ratio

Container

Lt. Blue (Sodium Citrate)

Preferred Specimen

2.7 mL Lt. Blue (NaCitrate) vacutainer

Reference or Target Ranges

Reference Ranges:  
CK-R (min): 4.6 - 9.1                                                     
CKH - R (min): 4.3 - 83
CKH - MA (mm): 52 - 69
CKH - LY30 (%): 0 - 3.2
CRTH - MA (mm): 53 - 69
CFFH - MA (mm): 15 - 34

Reasons for Rejection

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
  Patient samples must be obtained through a 21-guage needed or larger. Underfilled , overfilled or clotted sample as well as samples that are refrigerated or centrifuged must all be redrawn. 

Specimen Stability

Ambient 2 hours
Refrigerated (4°C to 8°C) N/A
Frozen(-70°C to -20°C) N/A

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time

Stat: Within 60 minutes of arrival in the lab

Routine: Within 2 hours on arrival to lab
Stat Availability Yes
Performing Bench UH Coagulation
Methodology/Method Description The TEG6s analyzer records the kinetic changes in a sample of anticoagulated whole blood as the sample clots, retracts and/or lyses in real time. The system output consists of a table of numerical values derived from a graphical representation of the hemostasis curve, which depicts clot firmness over time. 

CPT Codes

85175x1, 85347x2, 85384x1, 85576x2, 85396 26