DVT and Clots Flashcards
1
Q
How can DVTs be conservatively prevented?
A
- TEDs
- Mobilisation
- Hydration
2
Q
How can DVTs be prevented in surgery?
A
- Intermittent pnuematic compression boots
3
Q
Which medications should be stopped before surgery?
A
- Oral contraceptives- 4 weeks with another method to cover
- Warfarin- 5 days with heparin cover
4
Q
What prophylaxis medication is used?
A
- SC heparin
- 5000u dalteparin at 6pm (2500u for day case)
- At least 4 hours apart from any epidural
5
Q
How do compression stockings work?
A
Compression of calf veins reduces stasis of blood to reduce thrombus risk
6
Q
What is Virchow’s Triad?
A
- Change to blood composition (increased haematocrit)
- Disturbed blood flow
- Changes to the vessel wall
7
Q
When should LMWH be stopped?
A
When the INR is 2.5
8
Q
In a pre-op check, what should be checked?
A
OP CHECS
- Operative fitness (co-morbidities)
- Pills
- Consent
- History (anaesthesia, surgeries, conditions)
- Ease of intubation
- Clexane (DVT prophylaxis)
- Site marked
