pulmonary reserve

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Noun1.pulmonary reserve - the additional volume of air that the lungs can inhale and exhale when breathing to the limit of capacity in times of stress
reserve - (medicine) potential capacity to respond in order to maintain vital functions
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Invariably, owing to their limited pulmonary reserve, such patients are poor surgical candidates.
Postoperative residual curarisation in a patient with severely limited pulmonary reserve can precipitate a rapid respiratory decompensation with significant consequences, including the need for urgent re-intubation.
Postpneumonectomy syndrome is a well-known problem and includes excessive mediastinal shift to the ipsilateral side with bronchovascular compromise and decreased pulmonary reserve due to postoperative hyperinflation of the remaining lung (1).
This and the scant pulmonary reserve were thought to constitute the cause of death.
However, complications may become more apparent in patients with low levels of cardiopulmonary fitness, because they have very little pulmonary reserve and have reduced ability to withstand surgery.