Zhang et al reported predictors of coma lasting >= 72 hours in a patient with acute carbon monoxide poisoning. The authors are from Hebei General Hospital in Shijiazhuang, China.
Patient selection: acute carbon monoxide poisoning
Outcome: coma lasting >= 72 hours
Parameters:
(1) serum NSE in µg/L
(2) serum S100B in µg/L
(3) Glasgow coma scale
Parameter
Finding
Points
serum NSE
<= 13 µg/L
0
> 13 µg/L
1
serum S100B
<= 0.43 µg/L
> 0.43 µg/L
Glasgow coma scale
3 to 5
6 to 15
number of predictors of coma >= 72 hours =
= SUM(points for all of the parameters)
Interpretation:
• minimum number of predictors: 0
• maximum number of predictors: 3
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