CAISS External and Thermal 2

Question 1

According to AIS coding, a full-thickness burn covering 20% TBSA in an adult is assigned which severity level?

Accepted Answer

AIS 4

Answer

Full-thickness burns covering 10–29% TBSA in adults are coded AIS 4 (severe) in the External and Thermal body region.

Question 2

When using the Rule of Nines to estimate TBSA burned in an adult, what percentage is assigned to one entire lower extremity?

Accepted Answer

18%

Answer

Each lower extremity represents 18% of TBSA in the adult Rule of Nines.

Question 3

An AIS coder encounters a wound described as 'dermis intact with erythema and pain only.' What burn depth classification applies?

Accepted Answer

Superficial (first degree)

Answer

Superficial (first-degree) burns affect only the epidermis, presenting as erythema with intact dermis and no blistering.

Question 4

Which AIS descriptor best characterizes an isolated degloving injury to the forearm with no underlying structural damage?

Accepted Answer

AIS 2 — moderate

Answer

A localized degloving injury without involvement of bone, vessel, or nerve is typically coded AIS 2 in the External region.

Question 5

In the AIS, which body region code is used for injuries to the skin and subcutaneous tissue that do not fit under a specific anatomic region?

Accepted Answer

Region 6 (External)

Answer

AIS Region 6 (External) captures skin and subcutaneous injuries not attributable to another specific anatomic region.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test