Table 6

Gurd’s criteria for the diagnosis of fat embolism syndrome

The diagnosis of fat embolism syndrome requires at least one sign from the major criteria and at least four signs from the minor criteria category.
Gurd’s major criteria:Axillary or subconjuctival petechia
Occurs transiently (4–6 hours) in 50–60% of the cases
Hypoxaemia (Pao2 <60 mm Hg; Fio2 ⩽0.4)
Central nervous system depression disproportionate to hypoxaemia, and pulmonary oedema
Gurd’s minor criteria:Tachycardia (more than 110 beats/min)
Pyrexia (temperature higher than 38.5°C)
Emboli present in retina on funduscopic examination
Fat present in urine
Sudden unexplainable fall in packed cell volume or platelets
Increasing sedimentation rate
Fat globules present in sputum