Haematology Flashcards Preview

RACP Cardio AT > Haematology > Flashcards

Flashcards in Haematology Deck (8)
Loading flashcards...
1
Q

What is the rate of HITS with heparin?

A

2-4%

2
Q

What is the rate of HITS with enoxaparin?

A

0.6%

3
Q

What is the diagnostic criteria for HITS?

A

Diagnosed through combination of clinical and laboratory factors

4T score
4-5 intermediate probability
6-8 high probability

4
Q

What is the 4T score for HITS?

A

Thrombocytopenia (fall and and nadir)
Timing (5-10 days after exposure most likely)
Thrombosis (confirmed, suspected, none)
Thrombocytopenia - other causes (none/possible/definite)

5
Q

Treatment of HITS?

A

Cease heparin anticoagulant
Start non heparin anticoagulant
Continue for 4 weeks if no thrombosis, or three months if has had thrombosis

6
Q

What is the best test to assess for residual dabigatran activity?

A

Thrombin time

7
Q

What is the best test to assess for residual rivaroxaban/apixaban activity?

A

Anti Xa level

PT/INR

8
Q

What is the risk of thrombosis with APLS with SLE?

A

4% per year