A subject sits in a full-body Plethysmograph, and makes an expiratory effort against a closed glottis....

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A subject sits in a full-body Plethysmograph, and makes an expiratory effort against a closed glottis. What happens to pressu

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Answer 1

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Plethysmography is a test that measures volume and pressure in a particular organ or whole body. You have to sit in a small closed room like a phone booth with some sensors and a mouthpiece. This is a very accurate test to measure air volume in the lungs than spirometry.

Plethysmography is a suitable test for adults. we can study the limbs, lungs, and genitalia in the study. In lung plethysmograph pulmonologist measure inspired volume, expired volume, residual volume, etc. It is a very accurate test for Total lung capacity measurement.

During plethysmography when a person makes an expiratory effort against a closed glottis then the mouthpiece measured the amount of air exhaled by a person. plethysmograph room air pressure also changed during this effort so, the machine can measure the lung volume.

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A subject sits in a full-body Plethysmograph, and makes an expiratory effort against a closed glottis....

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A subject sits in a full-body Plethysmograph, and makes an expiratory effort against a closed glottis....

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