Weaver D K, Miller D, Leventhal E A, Tropeano V
Am J Clin Pathol. 1978 Sep;70(3):400-5. doi: 10.1093/ajcp/70.3.400.
The results of sending specimens through a computerized pneumatic airtransport system and manually delivering specimens were compared for 15 chemical tests and six hematologic procedures. All specimens were collected from inpatients and outpatients into evacuated glass containers. The specimens traversed a maximum of 829 feet (253 meters) involving 16 bends and eight transfer units at 25 feet/second (7.6 meters/second). Only the activity of lactate dehydrogenase exceeded the precision of the test in pneumatically transported specimens. Ruptured erythrocytes in incompletely filled vacuum tubes were the likely source of the increased lactate dehydrogenase activity. Neither the serum sodium, potassium, chloride, carbon dioxide, total protein, albumin, calcium, glucose, creatinine, total bilirubin, alkaline phosphatase, aspartate transaminase, acid phosphatase, uric acid, leukocyte count, erythrocyte count, hemoglobin, hematocrit, nor the prothrombin time and partial thromboplastin time were affected by pneumatic transport. It is concluded that the pneumatic system tested provides a safe, efficient method of transporting the blood specimens tested.
对通过计算机控制的气动空气传输系统运送标本和人工运送标本的结果进行了比较，涉及15项化学检测和6项血液学检测程序。所有标本均从住院患者和门诊患者处采集到真空玻璃容器中。标本传输的最大距离为829英尺（253米），途中经过16个弯道和8个转运单元，传输速度为25英尺/秒（7.6米/秒）。只有乳酸脱氢酶的活性在气动传输的标本中超出了检测的精密度范围。真空采血管未完全充满导致红细胞破裂可能是乳酸脱氢酶活性升高的原因。血清钠、钾、氯、二氧化碳、总蛋白、白蛋白、钙、葡萄糖、肌酐、总胆红素、碱性磷酸酶、天冬氨酸转氨酶、酸性磷酸酶、尿酸、白细胞计数、红细胞计数、血红蛋白、血细胞比容，以及凝血酶原时间和部分凝血活酶时间均未受气动传输的影响。结论是，所测试的气动系统为运送所检测的血液标本提供了一种安全、高效的方法。
