Glass C, Grap M J, Corley M C, Wallace D
Medical College of Virginia Hospitals, Richmond.
Heart Lung. 1993 Mar-Apr;22(2):158-65.
To examine nurses' ability to deliver 1.5 times the ventilated tidal volume at 100% FIO2 with a manual resuscitation bag during endotracheal suctioning.
Prospective, descriptive.
Six adult critical care units in a large university-affiliated medical center.
One hundred nurses randomly selected from the six adult intensive care units.
Nurses' manual resuscitation bag delivery of tidal volume and oxygen, as well as bagging rate, number of breaths delivered, and number of suction catheter passes performed. Patients' heart rate, mean arterial pressure, and arterial oxygen saturation.
The mean FIO2 delivered was 0.71 (range 0.24 to 0.97). Oxygen liter flow and nurses' delivered minute ventilation predicted 24% of the variance in FIO2 delivered. Mean bagging rate was 31 compressions per minute. The mean volume per breath delivered was 626 cc, which resulted in achievement of 57% of the standard (1128 cc). Volume achieved was related to patient lung compliance, but not related to nurses' experience, unit of employment, hand strength, or size.
Nurses observed were unable to meet the standard for volume or oxygen delivery. However this did not affect the patient's heart rate, mean arterial pressure, or SaO2.
检查护士在气管内吸痰期间使用手动复苏袋以100%的吸入氧浓度输送1.5倍通气潮气量的能力。
前瞻性描述性研究。
一所大型大学附属医院的六个成人重症监护病房。
从六个成人重症监护病房中随机选取的100名护士。
护士使用手动复苏袋输送的潮气量和氧气量、按压频率、输送的呼吸次数以及进行的吸痰导管插入次数。患者的心率、平均动脉压和动脉血氧饱和度。
输送的平均吸入氧浓度为0.71（范围为0.24至0.97）。氧气流量升数和护士输送的分钟通气量可预测输送的吸入氧浓度中24%的变异。平均按压频率为每分钟31次。每次呼吸输送的平均气量为626立方厘米，达到标准量（1128立方厘米）的57%。达到的气量与患者的肺顺应性有关，但与护士的经验、工作单位、手部力量或体型无关。
观察到的护士无法达到气量或氧气输送的标准。然而，这并未影响患者的心率、平均动脉压或动脉血氧饱和度。
