Thromboelastograph, cardiac

Alphabetical Test listing

Thromboelastograph, cardiac-8961

Thromboelastograph, cardiac

This testing is intended to be used to provide a rapid qualitative and quantitative indication of the coagulation state of a cardiovascular surgery or actively bleeding patient. The clot firmness changes in a sample of citrated whole blood as the sample clots, retracts and lyses in real time. The analyzer output consists of a qualitative graphical representation (mirrored coagulation curve – clot firmness over time) and several defined numeric parameters describing the curve quantitatively.

Note:  For total artificial heart indications (ANW only), a separate sendout protocol must be arranged with the laboratory.  Refer to TEG with heparinase, TEG with platelet inhibition/mapping, or TEG without heparinase).


For inpatients ONLY at Allina Health ANW, Mercy or United Hospitals

Sodium citrate (Na cit) whole blood
2.7 mL
  •  All Coagulation tubes must be filled to the frosted indicator line or minimum fill line
  • Tubes for ROTEM testing and Routine coagulation cannot be interchanged
  • Immediatley following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

Lt blue Sodium citrate (NaCit) - 2.7mL


Ambient - 4 hours (2 hours if patient is on Heparin)

Specimen MUST be walked down to the laboratory

  • Incorrect volume
  • Exceed standard testing time, delay in transport
  • Incorrectly labeled or mislabeled
  • Clotted
AHL - Coagulation: W
Available at the Central Laboratory and Mercy and United hospitals.
Daily, 24/7