How do you interpret TEG results?
How do you interpret TEG results?
If we interpret our TEG values:
- R time 20.0 => well above the upper limit of normal (10.0 minutes) = significantly prolonged time for clot formation.
- K time 13.2 => normal: up to 10.0 = prolonged fibrin cross-linking.
- a-angle 16.5 => normal >53.0 = limited clot formation.
What does Rotem measure?
BACKGROUND: ROTEM is a method of measuring hemostasis quality via the viscoelastic properties of a blood clot and is designed for patient blood management. ROTEM provides a rapid assessment of clot development from secondary hemostasis to clot lysis by evaluating clot formation, clot firmness, and clot fibrinolysis.
What is Ma TEG?
MA (maximal amplitude): measures maximal clot strength, and is equal to the maximal width of the TEG. This represents clot strength as determined by platelet number and function, as well as fibrin cross-linking to form a stable clot.
What are the uses of Thromboelastography TEG )?
Thromboelastography (TEG) evaluates clot initiation, formation, and stability, using whole blood or plasma. TEG has been used primarily to monitor blood component therapy during surgery.
What is platelet mapping?
Platelet mapping measures the presence of platelet inhibition using heparin to suppress thrombin, activator F, to replace thrombin in converting fibrinogen into fibrin and ADP or AA to determine the amount of inhibition at each receptor site.
What is the difference between TEG and Rotem?
In fact the main difference between TEG and ROTEM is the bit which rotates (TEG rotates the cup, and ROTEM rotates the pin). Irrespective of which bit is rotating, some impediment to the rotation develops as the blood clots.
Where is Rotem used?
Rotational thromboelastometry (ROTEM®) has been used to diagnose coagulopathy and guide hemostatic therapy in trauma. This systematic review of clinical studies in trauma investigates the ROTEM® parameters thresholds used for the diagnosing coagulopathy, predicting and guiding transfusion and predicting mortality.
How do you do Thromboelastography?
In this assay, a standard TEG is run using patient’s whole blood. Then, separate assays are run using the patient’s blood with added AA or ADP. The contribution of fibrin to the MA is subtracted using a mathematical formula. This allows determination of the MA (AA) and MA (ADP), respectively.
What is TEG platelet mapping?
The whole blood Thrombelastograph (TEG®) Platelet Mapping™ assay measures clot strength, maximal amplitude (MA), reflecting maximal platelet function, and detects the reduction in platelet function, presented as percentage inhibition, by both aspirin [8] and clopidogrel.
How does TEG platelet mapping work?
How is cryoprecipitate measured?
Blood volume=weight (kg)×70 ml kg−1. Plasma volume=blood volume×(1−haematocrit). mg of fibrinogen required=(desired fibrinogen−current fibrinogen in mg dl−1)×plasma volume divided by 100 ml dl−1. Bags of cryoprecipitate required=mg of fibrinogen divided by 250 mg.
