Question
Which condition may not benefit from oxygen therapy?
| A. |
Asthma |
| B. |
Pneumonia |
| C. |
Subglottic stenosis |
| D. |
Pulmonary fibrosis |
Show Answer
|
Correct Answer � C Explanation |
 |
Subglottic stenosis is narrowing below the vocal cords, causing mechanical airway obstruction. Oxygen therapy may not help since the issue is airway narrowing, not gas exchange. Surgical correction or dilation is better suited.
Incorrect Options:
– Asthma: Oxygen helps manage hypoxemia during severe attacks.
– Pneumonia: Oxygen is crucial when hypoxemia occurs via lung consolidation.
– Pulmonary fibrosis: Scar tissue reduces oxygen diffusion; oxygen is essential.