Verderber A, Gallagher K J
University of Hawaii at Manoa, Honolulu.
Am J Crit Care. 1994 Sep;3(5):374-81.
Baseline data are needed to provide a foundation for future studies investigating the effects of various nursing interventions on the oxygen requirements of critically ill patients.
To establish reference values for the oxygen requirements of adults in response to three common patient events: a nurse-administered bed bath, passive range-of-motion exercises, and turning from side to side; and to determine whether the order in which the interventions were administered had an effect on oxygen consumption.
A convenience sample of 30 healthy men and women were randomly assigned to one of three treatment groups, for which the order in which interventions were to be administered had previously been designated. Data were analyzed using analysis of variance with repeated measures.
There was a significant difference in the mean oxygen consumption among activities, as well as between men and women, with men having a significantly higher mean oxygen consumption than that of the women. For both men and women, the mean oxygen consumption during unassisted turning and back care was significantly higher than at baseline. The oxygen consumption for men averaged 4.25 mL/kg per minute, SD = .71 at baseline, 5.08 mL/kg per minute, SD = .98 for turning, and 4.72 mL/kg per minute, SD = .90 during back care. Women averaged 3.74 mL/kg per minute, SD = .49 at baseline, 4.48 mL/kg per minute, SD = .85 for turning, and 3.89 mL/kg per minute, SD = 1.15 during back care. Changes in oxygen consumption for other interventions were nonsignificant and negligible. Oxygen consumption returned to near baseline within 15 minutes of cessation of activity. The order in which interventions were administered did not have a significant effect on oxygen consumption.
The anterior bath and passive range of motion exercises have minimal effect on oxygen consumption. Turning and back care significantly increase oxygen consumption from the baseline value. The order in which interventions are administered does not have any appreciable effect on oxygen consumption.
需要基线数据为未来研究各种护理干预对重症患者氧气需求的影响提供基础。
确定成人在应对三种常见患者事件时的氧气需求参考值，这三种事件分别是：护士协助进行床上擦浴、被动关节活动度练习以及翻身；并确定干预措施的实施顺序是否会对氧气消耗产生影响。
选取30名健康男性和女性组成便利样本，随机分配到三个治疗组之一，每个组干预措施的实施顺序先前已确定。采用重复测量方差分析对数据进行分析。
不同活动之间以及男性和女性之间的平均氧气消耗量存在显著差异，男性的平均氧气消耗量显著高于女性。对于男性和女性而言，自主翻身和背部护理期间的平均氧气消耗量均显著高于基线水平。男性在基线时的氧气消耗量平均为4.25毫升/千克每分钟，标准差为0.71；翻身时为5.08毫升/千克每分钟，标准差为0.98；背部护理时为4.72毫升/千克每分钟，标准差为0.90。女性在基线时的氧气消耗量平均为3.74毫升/千克每分钟，标准差为0.49；翻身时为4.48毫升/千克每分钟，标准差为0.85；背部护理时为3.89毫升/千克每分钟，标准差为1.15。其他干预措施导致的氧气消耗变化不显著且可忽略不计。活动停止后15分钟内，氧气消耗恢复至接近基线水平。干预措施的实施顺序对氧气消耗没有显著影响。
前擦浴和被动关节活动度练习对氧气消耗影响极小。翻身和背部护理会使氧气消耗从基线值显著增加。干预措施的实施顺序对氧气消耗没有任何明显影响。
