ROTEM® parameters

CFT = Clot Formation Time (sec)

- angle (°)

MCF = Maximum Clot Firmness (mm)

Clot Quality

Maximum Lysis (%)

CT = Clotting Time (sec)

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A5 = Clot Firmness (mm)5 minutes after CT

AX = Clot Firmness (mm)x minutes after CT

ROTEMROTEM®® ReferenceReference valuesvalues

< 15 4)94-100 4)40-65 4)35-60 4)30-70 4)150-700 4)300-10004)NATEM

MCF <9 mm is a sign of decreased fibrinogen or disturbed clot polymerisation. MCF > 25 mm is a sign of elevated fibrinogen levels (which may lead to a normal EXTEM or INTEM in spite of thrombocytopenia).

n.dn.d9-25n.d8-24n.d7-23n.dn.dn.dFIBTEM

Comparison with EXTEM. A better clot formation with ap-TEM® or APTEG-S when compared to ex-TEM® is an early sign of hyperfibrinolysis.APTEM

< 1594-10050-7250-7250-7148-6943-6563-8334-15938-79EXTEM

Comparison with INTEM. A better clot quality in HEPTEM as compared to INTEM indicates the presence of heparin or heparin-like anticoagulants in the sample.

HEPTEM

< 1594-10050-7250-7250-7148-6944-6670-8330-110 100-240 INTEM

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CLI 30(%)MCF(mm)A25(mm)A20(mm)A15(mm)A10(mm)AngleCFT (s)CT (s)test name (reagent)

Referenz: Lang T, Bauters A, Braun SL, Poetzsch B, von Pape K-W, Kolde H-J, Lakner M. Multi-centre investigation on reference ranges forROTEM® thromboelastometry (eingereicht in Blood Coagulation and fibrinolysis)

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