John Landry, BS, RRT

Learn what inspiratory capacity is, how it’s measured, and why it matters in assessing lung function and respiratory disease.

Learn what residual volume is, why it matters in respiratory care, and how it helps assess lung function and disease.

Learn what expiratory reserve volume (ERV) is, why it matters in respiratory care, and how it reflects lung function and mechanics.

Learn what inspiratory reserve volume (IRV) is, why it matters in respiratory care, and how it reflects lung function and physiology.

Learn what vital capacity is, how it’s measured, and why it’s important for assessing lung function and respiratory health.

Learn what tidal volume is, why it matters in respiratory care, and how it impacts ventilation, gas exchange, and patient safety.

Learn what total lung capacity (TLC) is, how it’s measured, and why it’s essential for diagnosing and managing respiratory disease.

Learn what functional residual capacity (FRC) is, why it matters in respiratory care, how it’s measured, and its clinical significance.

Learn how a bronchoprovocation study detects airway hyperreactivity, aiding in the diagnosis and management of asthma.

Learn what the methacholine challenge test is, how it works, and why it’s important in diagnosing asthma and airway hyperresponsiveness.

Learn what gas distribution tests are, the different types used, and how they help assess lung volumes and ventilation abnormalities.

Learn how body plethysmography measures lung volumes to help respiratory therapists diagnose, treat, and manage respiratory conditions.

Learn what DLCO is, how it measures gas exchange in the lungs, and why it is a vital pulmonary function test in respiratory care.

Learn what spirometry is, how it works, and why it is a vital diagnostic tool for respiratory therapists in the field of respiratory care.