caa a22 4500 465826040 CHVBK 20180323112149.0 cr unu---uuuuu 170327e19900401xx s 000 0 eng 10.1007/BF02828289 doi (NATIONALLICENCE)springer-10.1007/BF02828289 Anesthesia machine malfunction simulating spontaneous respiratory effort [Elektronische Daten] [Terrance Hensler, M. Dhamee] We present a case in which a dip in the capnogram of an anesthetized patient, which may indicate clinical complications such as spontaneous respiratory effort, was caused by a malfunction of the anesthesia delivery system. The rubber diaphragm of the ventilator relief valve was found to be coated with a sticky substance which may have caused adhesion at the valve seat. This adhesion blocked the flow ot excess gas to the scavenging system during exhalation. It was demonstrated that a pressure of 5 cm H2O was needed to overcome this adhesion. Little, Brown and Company, 1990 Equipment: anesthesia machines, capnometers nationallicence Measurement techniques: capnography nationallicence Hensler Terrance Medical College of Wisconsin, 8700 West Wisconsin Ave, 53226, Milwaukee, WI aut Dhamee M. Medical College of Wisconsin, 8700 West Wisconsin Ave, 53226, Milwaukee, WI aut Journal of Clinical Monitoring Springer Netherlands 6/2(1990-04-01), 128-131 0748-1977 6:2<128 1990 6 10877 https://doi.org/10.1007/BF02828289 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02828289 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hensler Terrance Medical College of Wisconsin, 8700 West Wisconsin Ave, 53226, Milwaukee, WI aut NATIONALLICENCE 700 1- Dhamee M. Medical College of Wisconsin, 8700 West Wisconsin Ave, 53226, Milwaukee, WI aut NATIONALLICENCE 773 0- Journal of Clinical Monitoring Springer Netherlands 6/2(1990-04-01), 128-131 0748-1977 6:2<128 1990 6 10877 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer