| A | B |
| ABG | Arterial Blood Gases |
| AFB | acid fast bacilus |
| ARDS | acute respiratory distress syndrome |
| BAL | bronchioalveolar lavage |
| COPD | chronic obstructive pulmonary disease |
| CPAP | continuous positive airway pressure |
| C&S | culture and sensitivity |
| CTA | clear to auscultation |
| DOE | dyspnea on exertion |
| DPT | dry powder inhaler |
| DPT | diptheria, pertussis, tetanus |
| ERV | expiratory reserve |
| FEV | forced expiratory volume |
| FVC | forced vital capacity |
| HHN | hand held nebulizer |
| ICU | intensive care unit |
| IRV | inspiratory reserve volume |
| MDI | metered dose inhaler |
| MC | nasal cannula |
| NIV | noninvasive ventilation |
| OSA | obstructive sleep apnea |
| PA gram | pulmonary angiogram |
| PCP | pneumocystis pneumonia |
| PE | pulmonary embolism |
| PEP | positive expiratory pressure |
| PEEP | positive end-exiratory pressure |
| PND | paroxysmal noctural dyspnea |
| RSV | respiratory syncytial virus |
| RV | residual volume |
| TBNA | transbronchial needle aspiration |
| TLC | total lung capacity |
| VAP | ventilatory associated pnemonia |
| VATS | video assisted thoracic surgery |
| VC | vital capacity |