Oxygen therapy may not be useful in

Oxygen therapy may not be useful in
a) Asthma
b) Pneumonia
c) Subglottic stenosis
d) Pulmonary fibrosis
Correct Answer - D
Ans: D.Pulmonary fibrosis
Many EMS protocols indicate that oxygen should not be withheld
from any patient, while other protocols are more specific or
circumspect. However, there are certain situations in which oxygen
therapy is known to have a negative impact on a patient’s condition
like paraquat poisoning,pulmonary fibrosis and lung damage
resulting from bleomycin treatment.