Research tests examples

Measurement

Test

Research use

Diaphragmatic strength (transdiaphragmatic pressure)

Gastric and oesophageal manometry

Respiratory muscle function, weaning

Pleural (intrathoracic) pressure

Oesophageal manometry

Ventilator trauma, work of breathing, weaning

Functional residual capacity

Closed circuit helium dilution, (bag-in-a-box) open circuit N2 washout

Lung volumes, compliance

Ventilation-perfusion relationship

Multiple inert gas elimination technique, isotope techniques

Regional lung ventilation-perfusion, pulmonary gas exchange

Pulmonary diffusing capacity

Carbon monoxide uptake

Pulmonary gas exchange

P.95

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