Rotem Sigma

Message
Order as Rotem Sigma, ONLY FOR CARDIOLOGY PATIENTS


Test Code
Rotem Sigma


Alias/See Also
Rotem Sigma includes:  INTEM C, EXTEM C, FIBTEM C, HEPTEM C
 


Preferred Specimen
BLU Vacutainer (3.2% buffered Sodium Citrate)
FULL 2.7 ml size vacutainer


Minimum Volume
FULL 2.7 ml BLU Citrate Vacutainer


Instructions
Do NOT Shake Sample,
Do NOT roll the sample
Do NOT Store the sample on Ice


Setup Schedule
POC


Report Available
Rotem Sigma results should be viewed in realtime via the GemWeb Live Viewer.  Paper reports of finalized results are scanned into the patient medical record.


Reference Range
Refer to Interpretation Chart


Clinical Significance
The ROTEM sigma thromboelastometry system is a fully integrated and automated in vitro diagnostic system designed to monitor and analyze a patient's coagulation status by measuring the viscoelastic properties of a 3.2% citrated venous or arterial whole blood sample. The ROTEM sigma system is indicated for use with adult patients 21 years and older where a semi-quantitative evaluation of their blood coagulation properties is desired, in the point-of-care and/or laboratory settings. Coagulation evaluations on the ROTEM sigma instrument, together with the ROTEM sigma complete + hep cartridge, are used to assess peri-operative hemorrhage and/or thrombosis in cardiovascular surgery. The ROTEM sigma system records the kinetic changes in a citrated whole blood sample during clot formation as well as when the sample clot retracts and/or lyses. Different parameters are measured and reported for this purpose. The graphical presentation reflects the various physiological results, which describe the interaction between coagulation factors and inhibitors, fibrinogen, platelets, and the fibrinolysis system. Additionally, the effect of certain drugs influencing coagulation, in particular some anticoagulants (e.g. Heparin), can be detected.
The single use, multichannel cartridge ROTEM sigma complete + hep contains the following assays:
  1. INTEM C is a semi-quantitative assay used to monitor coagulation via the intrinsic pathway in citrated whole blood samples.
  1. EXTEM C is a semi-quantitative assay used to monitor coagulation via the extrinsic pathway in citrated whole blood samples.
  1. FIBTEM C is a semi-quantitative assay used to monitor coagulation via the extrinsic pathway in citrated whole blood samples, after blocking platelet contribution to clot firmness.
  1. HEPTEM C is a semi-quantitative assay used to monitor coagulation via the intrinsic pathway in citrated whole blood samples, after inactivating heparin.
Results from the ROTEM sigma should not be the sole basis for patient diagnosis; ROTEM sigma results should be considered along with a clinical assessment of the patient's condition and other laboratory tests.


Performing Laboratory
CCMC POC Laboratory
CRMC POC Laboratory 
FHSH POC Laboratory 

Additional Information
GemWeb Live
Rotem Sigma Interpretation Card
Rotem Sigma Result Import Tip Sheet


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.