Which percentage detachment is characteristic of TEN?

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Multiple Choice

Which percentage detachment is characteristic of TEN?

Explanation:
The key idea is how we categorize these reactions by how much skin is detached. In toxic epidermal necrolysis, there is widespread epidermal necrosis with sloughing of more than 30% of the body’s surface area. This cutoff distinguishes TEN from Stevens-Johnson syndrome, which involves less than 10% detachment, and from cases with 10–30% detachment that are considered SJS/TEN overlap. Detachment is typically measured on body surface area using standard charts, and the larger the detached area, the more severe the illness. So, the characteristic detachment in TEN is greater than 30%.

The key idea is how we categorize these reactions by how much skin is detached. In toxic epidermal necrolysis, there is widespread epidermal necrosis with sloughing of more than 30% of the body’s surface area. This cutoff distinguishes TEN from Stevens-Johnson syndrome, which involves less than 10% detachment, and from cases with 10–30% detachment that are considered SJS/TEN overlap. Detachment is typically measured on body surface area using standard charts, and the larger the detached area, the more severe the illness. So, the characteristic detachment in TEN is greater than 30%.

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