Evaluation of the VMM turbine for spirometry in the applied physiology laboratory
Deutscher übersetzter Titel: | Beurteilung der VMM-Turbine fuer die Spirometrie im Labor fuer angewandte Physiologie |
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Autor: | Smith, W. Donald F.; Cunningham, David A.; Paterson, Donald H.; Rechnitzer, Peter A. |
Erschienen in: | Canadian journal of applied physiology |
Veröffentlicht: | 18 (1993), 3, S. 317-324, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1066-7814, 1543-2718 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199405071379 |
Quelle: | BISp |
Abstract
The volume measurement module turbine (VMM) was evaluated in 51 subjects for spirometry in applied physiology against the Stead-Wells spirometer (SW) and Wright peak flow meter (WM). The volume and flow ranges (VMM) were, FEV1 1.32 to 3.94 L (mean 2.62, confidence interval (CI) 2.46 to 2.78); forced vital capacity (FVC) 1.97 to 5.06 L (mean 3.50, CI 3.29 to 3.71); and peak expiratory flow rate (PEFR) 290 to 624 L/min (mean 4.34, CI 407 to 461). The mean difference for FEV1 was 0.09 L (CI 0.05 to 0.14), FVC 0.04 L (CI -0.02 to 0.10) and PEFR 18.0 L/min (CI 8.7 to 27.3) less than SW or WM. Bias with FEV1 and FVC was not significant, though PEFR demonstrated a significant proportional error. The repeatability coefficients for FEV1 and FVC were 0.18 and 0.20, comparable to the SW; but for PEFR they were greater, 58.4 versus 33.8 L/min by WM. The VMM turbine is accurate and reliable for the measurements of FEV1 and FVC over the ranges studied; however, care should be taken when interpreting PEFR. Verf.-Referat