| A1AD | Alpha1 Antitrypsin Deficiency Emphysema | FVC | Forced Vital Capacity | PF | Pulmonary Fibrosis |
| ABG | Arterial Blood Gas | GERD | Gastroesophageal Reflux Disease | PFT | Pulmonary Function Test |
| ARDS | Acute Respiratory Distress Syndrome | GI | Gastrointestinal | PH | Pulmonary Hypertension Secondary |
| ATRA | All Trans-Retinoic Acid | GP | General Practitioner | PI | Pulmonary Insufficiency |
| BAL | Bronchoalveolar Lavage | HEENT | Head, Eyes, Ears, Nose, Throat | PLB | Pursed Lip Breathing |
| BiPAP | Bi-level Positive Airway Pressure | HEPA | High Efficiency Particulate Air | PND | Paroxysmal Nocturnal Dyspnea/Post Nasal Drip |
| BMD | Bone Mineral Density | HR | Heart Rate | Po2 | Oxygen Tension in Arterial Blood |
| BOOP | Bronchiolitis Obliterans Organizing Pneumonia | HRCT | High Resolution CT Scan | PPH | Primary Pulmonary Hypertension |
| BP | Blood Pressure | IC | Inspiratory Capacity | PPV | Positive Pressure Ventilation |
| BX | Biopsy | ICU | Intensive Care Unit | PT | Physical Therapist/Pulmonary Therapy |
| CF | Cystic Fibrosis | ILD | Interstitial Lung Disease | PTX | Pneumothorax |
| CHF | Congestive Heart Failure | IPF | Idiopathic Pulmonary Fibrosis | PULM | Pulmonary |
| CLD | Chronic Lung Disease | IRV | Inspiratory Reserve Volume | QOL | Quality OF Life |
| CO | Carbon Monoxide | LOX | Liquid Oxygen | R/O | Rule Out |
| CO2 | Carbon Dioxide | LPM | Liters per Minute Oxygen or o2 flow rate | RAD | Reactive Airway Disease |
| COAD | Chronic Obstructive Airway Disease | LVRS | Lung Volume Reduction Surgery | RDS | Respiratory Distress Syndrome |
| COLD | Chronic Obstructive Lung Disease | MCS | Multiple Chemical Sensitivities | RLD | Restrictive Lung Disease |
| CPAP | Continuous Positive Airway Pressure | MDI | Metered Dose Inhaler | RLS | Restless Leg Syndrome |
| CPR | Cardiopulmonary Resuscitation | MRI | Magnetic Resonance Imaging | RRT | Registered Respiratory Therapist |
| CRT | Certified Respiratory Therapist | MVV | Maximal Voluntary Ventilation | RT | Respiratory Therapist/Respiratory Therapy |
| CT | CAT scan or Computerized Axial Tomography | NETT | National Emphysema Treatment Trial | RV | Residual Volume |
| CXR | Chest X-ray | NIV | Non Invasive Ventilator | RX | Treatment/Therapy/Prescription |
| DAD | Diffuse Alveolar Damage | NSIP | Non Specific Interstitial Pneumonitis | Sao2 | % Arterial Blood Saturation |
| DLCO | Diffusing Capacity of Carbon Monoxide | O2 | Oxygen | SATS | Referring to O2 Saturation Level by Oximetry |
| DNR | Do Not Resuscitate | OA | Occupational Asthma | SOB | Short Of Breath |
| DOE | Dyspnea on Exertion | OAD | Obstructive Airway Disease | Svo2 | % Venous Blood Oxygen Saturation |
| DPAP | Demand Positive Airway Pressure | OLD | Occupational Lung Disease | TLC | Total Lung Capacity |
| DX | Diagnosis | OSA | Obstructive Sleep Apnea | TTo2 | Transtracheal Oxygen |
| EKG | Electrocardiogram | OTC | Over the Counter | TV | Tidal Volume |
| ECHO | Echocardiogram | PAP | Positive Airway Pressure | TX | Transplant |
| ENT | Ears, Nose, Throat | Pco2 | Partial Pressure of Carbon Dioxide in Blood | UIP | Usual Interstitial Pneumonitis |
| ERV | Expiratory Reserve Volume | PCP | Primary Care Physician | URI | Upper Respiratory Infection |
| ET | Endotracheal Tube | PDI | Powdered Dose Inhaler | UTI | Urinary Tract Infection |
| FEF | Forced Expiratory Flow | PE | Physical Exam | VATS | Video Assisted Thoracic Surgery |
| FEFMAX | Forced Expiratory Flow at Maximum Effort | PE | Pulmonary Edema | VC | Vital Capacity |
| FEV | Forced Expiratory Volume | PE | Pulmonary Embolism | VQ | Ventilation Perfusion Scan |
| FEV1 | Forced Expiratory Volume in One Second | PEEP | Positive End Expiratory Pressure | XP | Transplant |
| FPF | Familial Pulmonary Fibrosis | PEFR | Peak Expiratory Flow Rate | | |
| FRC | Functional Residual Capacity | PEP | Positive Expiratory Pressure | | |
