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A system for calibrating the Respitrace impedance plethysmograph was developed with the capacity to quantitatively verify the accuracy of calibration. LabVIEW software was used on a Macintosh II computer to create a user-friendly environment, with the added benefit of reducing development time. The system developed enabled a research assistant to calibrate the Respitrace within 15 min while achieving an accuracy within the normally accepted 10% deviation when the Respitrace output is compared to a water spirometer standard. The system and methods described were successfully used in a study of 10 subjects smoking cigarettes containing marijuana or cocaine under four conditions, calibrating all subjects to 10% accuracy within 15 min.
W S Ellis, and
R T Jones
May 1985,
Medical & biological engineering & computing,
W S Ellis, and
R T Jones
October 1984,
Journal of nuclear medicine : official publication, Society of Nuclear Medicine,
W S Ellis, and
R T Jones
June 1982,
The American review of respiratory disease,
W S Ellis, and
R T Jones
November 1978,
The Journal of surgical research,
W S Ellis, and
R T Jones
March 1993,
Journal of applied physiology (Bethesda, Md. : 1985),
W S Ellis, and
R T Jones
October 2015,
European journal of clinical nutrition,
W S Ellis, and
R T Jones
March 2001,
Journal of applied physiology (Bethesda, Md. : 1985),
W S Ellis, and
R T Jones
November 1987,
Journal of applied physiology (Bethesda, Md. : 1985),
W S Ellis, and
R T Jones
September 1987,
The Journal of pediatrics,
W S Ellis, and
R T Jones
September 1982,
The American review of respiratory disease,
