Chronic Pain & Neuropathic Pain — Practice
A 58-year-old woman with chronic obstructive pulmonary disease is on a circle breathing system during general anaesthesia. The capnograph trace shows a slow upstroke of phase II and a steep, prolonged phase III that fails to reach a plateau. Which physiological abnormality does this waveform most specifically indicate?
ACardiac oscillations during apnoea
BOesophageal intubation
CIncreased ventilation-perfusion mismatch with airflow obstruction
DRebreathing of carbon dioxide due to exhausted soda lime