2023年5月14日 · One of the overlooked parts of teaching pulmonary function interpretation is developing an appreciation for the number and variety of errors that the equipment, patients and technicians can produce and how they affect the reported test results. I routinely run across a couple dozen errors each week while reviewing reports.

2013年1月19日 · Recently I was reading the blog of someone who teaches Pulmonary Function testing and they stated: “… in emphysema and air trapping, the VTG (thoracic gas volume) will be higher than a FRC (functional residual capacity) measured by Helium dilution and Nitrogen washout. This is because VTG is the volume of gas contained in the thorax ...

A constant volume – variable pressure plethysmograph. From “The history of lung function testing in the UK”, by Kevin Hogben, Inspire, 2011, Volume 11, No. 3, page 20.

2016年2月28日 · For this reason the book’s instructions are still oriented mostly around manual pulmonary function testing and there are numerous warnings about double-checking the results from automated systems. The book includes extensive discussion on the calculations and formulas used for testing which makes it useful as a teaching resource.

2013年2月16日 · Patients are advised not to smoke prior to DLCO testing, primarily because it increases carboxyhemoglobin. The effect of COHb on DLCO has been well studied, but COHb is not often measured before DLCO testing.

2016年7月10日 · Dozens of articles have been written about the correlation between different abnormal flow-volume loop contours and pulmonary disorders. In contrast very little has ever been written about what constitutes a normal flow-volume loop and what this looks like has been primarily anecdotal.

2014年6月21日 · Photo is from a sales brochure courtesy of James Sullivan, BA, RPFT, Supervisor, Pulmonary Laboratories, Memorial Sloan Kettering Cancer Center. “An 8-liter rolling seal type spirometer is used. Test results are displayed on an LED display, while the respiratory waveforms are displayed on a 9-inch green monitor.

2015年12月6日 · Used spirometers and other pulmonary function test systems have a limited market. Ebay, MedWow and DotMed are among the better places to sell or buy used medical equipment. However many used test system are not worth selling because of age or functionality.

2014年3月11日 · Product Type : Spirometer Product Name : SpiroPerfect Company Name : Welch Allyn Intended for : Portable/Office Configuration : Hand-held, attached to PC via USB Sensor Technology : Not Speci…

From ‘A Catalog of Pulmonary Function Equipment and Accessories’, W. E. Collins Inc., page 11.