In which of the following conditions is total lung capacity (TLC) always reduced?

Question

Quizplus · Accepted Answer

Restrictive lung disease is characterized by a reduction in lung volume and TLC is always reduced in this condition. Obstructive lung disease, such as asthma or chronic obstructive pulmonary disease (COPD), is characterized by difficulty exhaling air and may or may not result in a reduction in TLC depending on the severity of the disease. Combined restrictive and obstructive disease may result in a reduction in TLC, but it is not always the case. Acute airway obstruction may also result in a reduction in TLC, but it is a temporary condition and not a chronic lung disease.

In Which of the Following Conditions Is Total Lung Capacity