Table I.

Severity-of-illness score for toxic epidermal necrolysis (SCORTEN)

Risk Factors*	Score	Score
	0	1
Age	< 40 years	≥ 40 years
Associated cancer	No	Yes
Heart rate (beats/minute)	<120	≥ 120
Serum urea nitrogen	≤ 28 mg/dL (10 mmol/L)	> 28 mg/dL (10 mmol/L)
Body surface detached or affected	< 10%	≥ 10%
Serum bicarbonate	≥ 20 mEq/L (≥ 20 mmol′L)	< 20 mEq/L (≥ 20 mmol′L)
Blood glucose	≤ 250 mg/dL (≤ 13.88 mmol/L)	> 250 mg/dL (≤ 13,88 mmol/L)