Surgery>>>>>Burns
Question 8#

A patient with a 90% burn encompassing the entire torso develops an increasing Pco2 and peak inspiratory pressure.

Which of the following is most likely to resolve this problem?

A. Increase the delivered tidal volume
B. Increase the respiratory rate
C. Increase the FIO2
D. Perform a thoracic escharotomy

Correct Answer is D

Comment:

The adequacy of respiration must be monitored continuously throughout the resuscitation period. Early respiratory distress may be due to the compromise of ventilation caused by chest wall inelasticity related to a deep circumferential burn wound of the thorax. Pressures required for ventilation increase and arterial Pco2 rises. Inhalation injury, pneumothorax, or other causes can also result in respiratory distress and should be appropriately treated.

Thoracic escharotomy is seldom required, even with a circumferential chest wall burn. When required, escharotomies are performed bilaterally in the anterior axillary lines. If there is significant extension of the burn onto the adjacent abdominal wall, the escharotomy incisions should be extended to this area by a transverse incision along the costal margins.