| Abbreviations | Meaning |
 | RLL | Right Lower Lobe (lung) |
 | QC | Pulmonary Capillary Blood Flow |
 | PADP | Pulmonary Artery Diastolic Pressure |
 | RMAX,L | Maximum Resistance, Lung |
 | PCU | Pulmonary Care Unit |
 | LB | Lung Biopsy |
 | IL | Immature Lung |
 | XPTB | Extrapulmonary Tuberculosis |
 | PVA | Pulmonary Venous Atrial |
 | RDPA | Right Descending Pulmonary Artery |
 | FPE | Fatal Pulmonary Embolism; Field Placement Error; Final Prediction Error |
 | FB | Flexible Bronchoscope, Flexible Bronchoscopy |
 | RPA | Right Pulmonary Artery |
 | PAO | Airway Opening Pressure; Ascending Aortic Pressure; Pulmonary Artery Occlusion Pressure |
 | PSP | Pulmonary Surfactant Apoprotein |