8. DVT Flashcards
typical prophylaxis to avoid DVT?
anticoagulant (LMWheparin or fondaparinux)
prophylaxis for DVT in pts with persistent hemodynamic instability?
anticoagulant + thrombolytic (TPa)
lab test to rule out DVT?
wt does negative result mean?
if positive what is next?
fibrin D-dimer (high sensitivity, low specificity)
negative = no DVT
ultrasound
drug for management of DVT?
warfarin
how many wells criteria indicate high risk for DVT?
moderate?
3+ = high
1-2 = moderate
first step in low to moderate suspicion of DVT?
high sus?
low-mod = D-dimer
high suspicion = ultrasound
wt symptom is most suspicious of PE?
Dyspnea
first step in low suspicion PE?
moderate?
high?
low - d-dimer
moderate - imaging
high - imaging
wt EKG abnormality is commonly seen w PE?
S1 Q3 T3
imaging to diagnose PE?
CT angiography
first step of imaging to diagnose DVT?
duplex ultrasound
2 diagnostic tools for PE other than CT and d-dimer?
V/Q perfusion scan
Echocardiogram
wt PIOPED criteria is indicative of high PE chance?
moderate?
low
high= 2 large mismatched Q
moderate= 1-3 moderate mismatched Q or 1 large
low= small Q defects
2 pts who should get secondary DVT prevention?
how often to reasses
first unprovoked DVT or PE w low-moderate bleeding risk
second unprovoked VTE w low-moderate bleeding risk
reasses anually
how are cancer DVT risk patients treated differently?
extend tx w same anticoag regardless of bleed risk?
