A patient has undergone a bronchoscopy and physical examination of the pulmonary system. The following clinical data were obtained: • ? carbonaceous sputum • ? airway edema • ? erythema/ulceration What type of lung condition does this patient likely exhibit?
A. postlung transplantation
B. ischemia-reperfusion induced lung injury
C. smoke inhalation/pulmonary burn
D. idiopathic pulmonary fibrosis
ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: Signs of inhalational injury may be absent until several days after the injury. The presence of carbonaceous sputum strongly suggests inhalational injury. Fiberoptic bronchoscopy to look for airway edema, erythema, or ulceration is indicated. Proximal airways may be normal in the case of inhalation of small particles that deposit in the distal airways and alveoli. Xenon 133 ventilation–perfusion scanning should be performed to confirm inhalational injury when clinically suspected.
D. Incorrect response: See explanation C
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