Coagulation Flashcards
1
Q
PT
A
11-12.5 seconds
an INR of 3 and PT of 32 seconds or more requires bleeding precautions
2
Q
INR
A
0.9-1.2 (normal)
2.0-3.0 (therapeutic range for A-fib)
2.5-3.5 (therapeutic range for mechanical valve)
3-4.5 (therapeutic range for high dose warfarin
an INR of 3 and PT of 32 seconds or more requires bleeding precautions
3
Q
aPTT
A
30-40 seconds
aPTT should be 1.5-2.5 times longer during heparin therapy
4
Q
D-Dimer
A
<250 mcg/L
5
Q
fibrinogen
A
2-4 g/L
