MRCP revision battle 19.6: LTOT

LTOT = long term oxygen therapy = 15 or more hours of oxygen per day.


This is the only treatment to increase survival in COPD.


NICE recommends it if:

• PaO2 <7.3kPa OR
• PaO2 <8kPa if
• secondary polycythaemia
• nocturnal hypoxia (questions may note 'morning headaches;
• peripheral oedema
• pulmonary hypertension

How about now trying our exercise tolerance...