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viscoelastic testing Flashcards

(16 cards)

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1
Q

what is the significance of the following TEG parameter?

R value

A

reaction time; time of latency from start of test until initial fibrin formation (amplitude of 2mm) initiation

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2
Q

what do the following TEG results represent?

prolonged R and K; decreased MA and alpha angle

A

anticoagulants/hemophilia (factor deficiencies)

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3
Q

what do the following TEG results represent?

normal R, prolonged K and decreased MA

A

platelet dysfunction/platelet function inhibitors or thrombocytopenia/thrombocytopathia

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4
Q

what do the following TEG results represent?

normal R, continuously decreasing MA, LY30 > 7.5% and LY60 > 15%

A

fibrinolysis

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5
Q

what do the following TEG results represent?

decreased R and K; increased MA and alpha angle

A

hypercoagulation

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6
Q

what is the significance of the following TEG parameter?

K

A

kinetics; time taken to achieve an amplitude of 20mm amplification

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7
Q

what is the significance of the following TEG parameter?

Alpha angle

A

slope between R and K; measures the speed at which fibrin buildup and cross-linking take place thrombin burst

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8
Q

what is the significance of the following TEG parameter?

TMA

A

time to maximum amplitude

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9
Q

what is the significance of the following TEG parameter?

MA

A

maximum amplitude

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10
Q

what is the significance of the following TEG parameter?

A30 or LY30

A

amplitude at 30 min; percentage decrease in amplitude at 30 min represents a measure of degree of fibrinolysis

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11
Q

what is the significance of the following TEG parameter?

CLT

A

clot lysis time

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12
Q

TEG vs ROTEM

A

identical parameters but different nomenclature; different clot activators are used; ROTEM more resistant to mechanical shock and likely more advantageous in clinical setting

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13
Q

What is the TEG equivalent of the following ROTEM factors?

CT

A

clotting time= R value (reaction time) initiation

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14
Q

What is the TEG equivalent of the following ROTEM factors?

CFT

A

clot formation time= K value and alpha angle amplification

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15
Q

What is the TEG equivalent of the following ROTEM factors?

MCF

A

maximum clot firmness= MA

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16
Q

What is the TEG equivalent of the following ROTEM factors?

CL

Study These Flashcards
A

clot lysis= LY30

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