Question

A 62-year-old man with COPD has persistent hypoxia with PaO2 6.8 kPa on room air at rest, confirmed on two occasions 3 weeks apart, and he has stopped smoking. Which of the following is an indication for long-term oxygen therapy (LTOT)?

Accepted Answer

PaO2 consistently below 7.3 kPa at rest when stable

Answer

Oxygen saturation below 95% on exercise only

Answer

Any breathlessness on exertion regardless of PaO2

Answer

Single low PaO2 reading during an exacerbation

Answer

Presence of wheeze alone

Practice question

A 62-year-old man with COPD has persistent hypoxia with PaO2 6.8 kPa on room air at rest, confirmed on two occasions 3 weeks apart, and he has stopped smoking. Which of the following is an indication for long-term oxygen therapy (LTOT)?