CT Case 098
A 60-year-old female with past history of lung cancer, treated with radiotherapy one year prior, has a routine surveillance CT as an outpatient.
Tag denitrogenation
Preoxygenation
Preoxygenation is the administration of oxygen to a patient prior to intubation to extend 'the safe apnoea time'. The primary mechanism is 'denitrogenation' of the lungs, however maximal preoxygenation is achieved when the alveolar, arterial, tissue, and venous compartments are all filled with oxygen.