Fat Embolism

Question 1

when do fat emboli usually manifest?

Answer 1

24-72h after insult (can be trauma or surgery)

Question 2

classic triad for fat embolus?

Answer 2

hypoxaemia
neurological abnormalities - e.g. confusion
petechial rash

Question 3

investigations for fat embolus?

Answer 3

full neurological and resp exam + CXR
CT if neuro symptoms are present
imaging of brain receommended

Question 4

mx of fat embolus?

Answer 4

supportive care: o2 therapy, fluid resus, occasionally mechanical ventilation

Question 5

aetiology of fat embolus?

Answer 5

fragments of fat enter systemic circulation and lode in small vessels of lungs or other tissues
most often due to fracture, esp of long bone

symptoms depend on site of embolism