Jesurum J
Cardiovascular Recovery Unit, St. Luke's Episcopal Hospital, USA.
J Cardiovasc Nurs. 1997 Jul;11(4):12-30. doi: 10.1097/00005082-199707000-00003.
Maintaining adequate oxygenation to promote vital organ functions represents a common challenge for the critical care nurse. Critically ill patients with impaired cardiac function may be particularly vulnerable to tissue oxygen deprivation because they have limited ability to increase oxygen delivery when oxygen demands increase. Consequently, routine nursing procedures that increase oxygen requirements may have adverse effects on tissue oxygenation. Interventions that enhance patient tolerance to nursing procedures by supporting the balance between oxygen supply and demand promote physiologic adaptation and may prevent complications associated with hypoxia such as cardiac dysrhythmias, hypotension, and cardiac arrest. This discussion will focus on the principles of tissue oxygenation, the effects of nursing interventions on oxygen demand, and interventions that may enhance patient tolerance to routine nursing interventions.
维持充足的氧合以促进重要器官功能是重症护理护士面临的一项常见挑战。心功能受损的重症患者可能特别容易出现组织缺氧，因为当氧气需求增加时，他们增加氧气输送的能力有限。因此，增加氧气需求的常规护理程序可能会对组织氧合产生不利影响。通过支持氧气供需平衡来提高患者对护理程序耐受性的干预措施可促进生理适应，并可能预防与缺氧相关的并发症，如心律失常、低血压和心脏骤停。本讨论将重点关注组织氧合的原则、护理干预对氧气需求的影响，以及可能提高患者对常规护理干预耐受性的干预措施。
