A SIMPLE HELIUM-DILUTION METHOD FOR THE DETERMINATION OF FUNCTIONAL RESIDUAL CAPACITY IN ARTIFICIALLY VENTILATED PATIENTS

  • 1 January 1980
    • journal article
    • research article
    • Vol. 29  (3) , 148-151
Abstract
A convenient modification of the classical closed circuit He dilution technique was developed to determine functional residual capacity, especially in intubated and artificially ventilated patients. The determination of the still inflatable lung volume and its variability in the course of pulmonary insufficiency or after a change in the adjustment of the respirator (PEEP [positive end-expiratory pressure] a.o.), was reproducible better than .+-. 10%. This method can be performed in a short time, without risk for the patient and with instruments locally independent of the ICU [intensive care unit] surgery or recovery room.

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