| Abbreviations | Meaning |
 | ABCD | Airway, Breathing, Circulation, Differential Diagnosis (or Defibrillate) - In Cardiopulmonary Resuscitation |
 | PPAW | Pulmonary Artery Wedge Pressure |
 | NPPE | Negative Pressure Pulmonary Edema |
 | PCU | Pulmonary Care Unit |
 | TTLC | True Total Lung Capacity |
 | HLA | Heart, Lungs, Abdomen |
 | LCEA | Lung Carcinoma Expressed Antigens |
 | DLCO, DLCO | Carbon Monoxide Diffusion In The Lung |
 | PAP | Pulmonary Alveolar Proteinosis |
 | PEWV | Pulmonary Extravascular Water Volume |
 | PLNA | Percutaneous Lung Needle Aspiration |
 | PHM | Peptide Histidine Methionine; Peptidylglycine Alpha-hydroxylating Monooxygenase; Posterior Hyaloid Membrane; Pulmonary Hyaline Membrane |
 | PVP | Pulmonary Venous Pressure |
 | B | Bronchial, Bronchus |
 | PAOP | Pulmonary Artery Occlusive Pressure (a.k.a.PCWP) |