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INTEM-Viscoelastic Clot Assessment
Test CodeINTEM
Alias/See Also
Rotem
CPT Codes
85396
Preferred Specimen
Citrate (BLU)
Instructions
Collect whole blood in 3.2% buffered sodium citrate (9:1 blood to sodium citrate). Venipuncture must be atraumatic.
Specimen Stability
Mix specimen well (minimum 10 times) and test within 4 hours of collection. Do Not Centrifuge
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Reject hemolyzed, clotted, overfilled, or short draw (<90%) samples.
Reject specimens for patients less than one year of age.
Methodology
Rotem Delta Thromboelastometry
Setup Schedule
24x7
Report Available
Use ROTEM VIEWER to view test progress in real time.
Result values available as soon as testing is completed.
Full report and graphs available in EPIC MEDIA Tab.
Reference Range
Test | Reference Range | Critical |
CT | 127-244 s | |
CFT | 48-109 s | |
Alpha Angle | 69-80 deg | |
A10 | 46-67 mm | <40 |
A20 | 52-71 mm | |
MCF | 52-72 mm | |
LI30 | >93% |
Clinical Significance
The in-tem® assay is a semi-quantitative in vitro diagnostic assay used on the ROTEM® delta Thromboelastometry System to monitor the coagulation process via the intrinsic pathway in citrated whole blood specimens. Clotting characteristics are described by the functional parameters Clotting Time (CT), Speed of Clot Formation (CFT and alpha angle), Clot Firmness (A20/MCF) and Clot Lysis [LOT, ML, Ll(x)].
Performing Laboratory
CRMC Laboratory
CCMC Laboratory