FEV1/FVC ratio and height

The PFT Lab I work with has recently gone through a major software and hardware upgrade. As part of this process we made the decision to switch our spirometry predicted…

The PFT Lab I work with has recently gone through a major software and hardware upgrade. As part of this…

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Single-breath TLC measurements

I was reviewing the specifications of different pulmonary function test systems recently and saw that several manufacturers were advertising that some of their test systems are able to measure TLC,…

I was reviewing the specifications of different pulmonary function test systems recently and saw that several manufacturers were advertising that…

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Mouthpieces and test quality

Mouthpieces serve at least two purposes. The first is to prevent cross-contamination among patients using PFT equipment. The ATS Statement on General Considerations for Lung Function Testing, (Eur …

Mouthpieces serve at least two purposes. The first is to prevent cross-contamination among patients using PFT equipment. The ATS Statement…

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Why isn’t PAO2 measured during DLCO tests?

Most pulmonary technicians and physicians are aware that a patient’s hemoglobin and carboxyhemoglobin levels are factors that affect DLCO test results. What may be less well appreciated is th…

Most pulmonary technicians and physicians are aware that a patient’s hemoglobin and carboxyhemoglobin levels are factors that affect DLCO test…

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Blog Author

Hi!  My name is Richard Johnston.  Pulmonary Function testing is an often overlooked and under-appreciated field.  I first started working in a Pulmonary Function Lab with manual test systems in…

Hi!  My name is Richard Johnston.  Pulmonary Function testing is an often overlooked and under-appreciated field.  I first started working…

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