Respiratory path 1

Question 1

DVT: risk factor

Answer 1

Virchow’s triad: stasis, hypercoag (factor V Leiden), endothelial damage.

Question 2

DVT: signs

Answer 2

Homan’s sign: dorxiflexion of foot= calf pain

Question 3

DVT: treatment:

Answer 3

heparin for prevention and acute management

Use warfarin for long-term prevention of DVT recurrence.

Question 4

Pulm emboli

Answer 4

Sudden onset dyspnea, chest pain tachypnea

May present as sudden death

Question 5

Pulm emboli: types

Answer 5

Fat,
Air,
Thrombus,
Bacteria,
Amniotic fluid,
Tumor

“FAT BAT”

Question 6

Fat emboli

Answer 6

Long bone fracture and liposuction,

Classic triad of hypoxemia, neurologic abn, petechial rash

Question 7

Amniotic fluid emboli

Answer 7

Can lead to DIC, esp. post partum

Question 8

Most pulm emboli arise from

Answer 8

95% arise from deep leg veins.

Lines of Zahn (pink=platelets and fibrins, red=RBC) help distinguish from post mortem thrombi.