Lung Volume Studies

Pulmonary function testing methods that measure FRC, including nitrogen washout, helium dilution, and body plethysmography; lung volume calculations; restrictive, obstructive, and combined interpretation; and airway resistance/conductance values from VTG.

ReviewResourcesQuiz
Respiratory | Spirometry: Lung Volumes & Capacities
Use this first for the core vocabulary: VT, IRV, ERV, RV, FRC, VC, IC, and TLC.
Lung Volumes by Body Plethysmography: Unraveling the Mysteries of the Box
Best match for VTG/body box mechanics, Boyle's law, panting against the shutter, and trapped gas.
Clinical Application of Total Body Plethysmography: Airway Mechanics Measurements
Targets the Raw, Gaw, sRaw, and sGaw section of the lesson.
Is There Only One Way to Measure Vital Capacity During Lung Volume Testing?
Good companion for SVC, VC, and how volume maneuvers fit into lung volume testing.
Pulmonary Lung Function Test Interpretation
Use this after the lesson to reinforce obstruction, restriction, air trapping, and hyperinflation patterns.