  |
Third
degree burns and at least 20% of the total
skin area are affected |
 |
 |
A thrid
degree burn, and 20% of the total body surface
|

Rule of Nine |
 |
 |
The
depth of burn is classified into 4
degrees: |
 |

|
Superficial
burn which affect the outer layer
(epidermis) of skin only |

|
Can
be further divided into partial thickness
or deep partial thickness burn. |

Partial thickness |
Affect
both the epidermis and the superficial
of the underlying skin (dermis) |

Deep partial thickness |
Affect
both the epidermis and the deeper
layers of the dermis |

|
All
the layers of the skin are affected |

|
It
affects the tissue below the skin which includes
fat, bone or muscles. |
 |
 |