| AAA | Abdominal Aortic Aneurysm |
| ADHF | Acutely Decompensated Heart Failure |
| AF | Atrial Fibrillation |
| AI | Aortic Insufficiency |
| ALARA | As Low as Reasonably Achievable |
| AMI | Acute Myocardial Infarction |
| AP | Anteroposterior |
| APP | Advanced Practice Practitioner |
| AR | Aortic Regurgitation |
| ARDS | Acute Respiratory Distress Syndrome |
| ARVC | Arrhythmogenic Right Ventricular Cardiomyopathy |
| AS | Aortic Stenosis |
| ASIS | Anterior Superior Iliac Spine |
| AV | Aortic Valve |
| BMI | Body Mass Index |
| BNP | Brain Natriuretic Peptide |
| BPD | Biparietal Diameter |
| BSA | Body Surface Area |
| BSV | Basilic Vein |
| CEUS | Contrast-Enhanced Ultrasonography |
| CFA | Common Femoral Artery |
| CFV | Common Femoral Vein |
| CHF | Congestive Heart Failure |
| CISVC | SVC Collapsibility Index |
| CLABSI | Central Line-Associated Blood Stream Infection |
| CMS | Centers for Medicare and Medicaid Services |
| CNS | Central Nervous System |
| CO | Cardiac Output |
| COPD | Chronic Obstructive Pulmonary Disease |
| CPR | Cardiopulmonary Resuscitation |
| CPT | Current Procedural Terminology |
| CQI | Continuous Quality Improvement |
| CRL | Crown-Rump Length |
| CRT | Cathode-Ray Tube |
| CSALVOT | Cross-Sectional Area of the LVOT |
| CSF | Cerebrospinal Fluid |
| CT | Computed Tomography |
| CTA | CT Angiogram |
| CUS | Compression Ultrasound |
| CVC | Central Venous Catheter |
| CVP | Central Venous Pressure |
| CW | Continuous-Wave |
| DCM | Dilated Cardiomyopathy |
| DFA | Deep Femoral Artery |
| DICOM | Digital Imaging and Communication in Medicine |
| DR | Dynamic Range |
| DT | Deceleration Time |
| DVT | Deep Vein Thrombosis |
| ECG | Electrocardiogram |
| ECMO | Extracorporeal Membrane Oxygenation |
| ED | Emergency Department |
| EDV | End-Diastolic Velocity |
| EF | Ejection Fraction |
| EJV | External Jugular Vein |
| EMD | Electromechanical Dissociation |
| EMS | Emergency Medical Services |
| EPs | Emergency Physicians |
| EPSS | E-Point Septal Separation |
| ERCP | Endoscopic Retrograde Cholangiopancreatography |
| ESPB | Erector Spinae Plane Block |
| EVAR | Elective Endovascular Aortic Repair |
| EVLW | Extravascular Lung Water |
| FA | Femoral Artery |
| FAC | Fractional Area Change |
| FASH | Focused Assessment with Sonography for HIV |
| FAST | Focused Assessment with Sonography for Trauma |
| FB | Fluid Bronchograms |
| FL | Femur Length |
| FPD | Focused Practice Designation |
| FUN | Forearm Ultrasound Nerve |
| FV | Femoral Vein |
| GCPS | Global Circumferential Peak Strain |
| GI | Gastrointestinal |
| GLS | Global Longitudinal Strain |
| GSV | Greater Saphenous Vein |
| GTD | Gestational Trophoblastic Disease |
| HACE | High-Altitude Cerebral Edema |
| HAPE | High-Altitude Pulmonary Edema |
| HARUs | High Acuity Response Units |
| HC | Head Circumference |
| HCM | Hypertrophic Cardiomyopathy |
| HEMS | Helicopter Emergency Medical Service |
| HF | Heart Failure |
| HIFU | High-Intensity Focused Ultrasound |
| HIPAA | Health Insurance Portability and Accountability Act |
| HPS | Hypertrophic Pyloric Stenosis |
| ICD | Implantable Cardioverter-Defibrillator |
| ICP | Intracranial Pressure |
| ICU | Intensive Care Unit |
| IF | Intimal Flap |
| IJV | Internal Jugular Vein |
| ION | Intraosseous Needle |
| IOP | Intraocular Pressure |
| IS | Interlaminar Space |
| IUD | Intrauterine Device |
| IUP | Intrauterine Pregnancy |
| IVC | Inferior Vena Cava |
| IVP | Intravenous Pyelogram |
| IVS | Interventricular Septum |
| KUB | Kidney, Ureter, and Bladder |
| LA | Left Atrium |
| LAD | Left Anterior Descending |
| LAE | Left Atrial Enlargement |
| LAST | Local Anesthetic Systemic Toxicity |
| LP | Lumbar Puncture |
| LUQ | Left Upper Quadrant |
| LV | Left Ventricle |
| LVAD | Left Ventricular Assist Device |
| LVEDA | Left Ventricular End-Diastolic Area |
| LVEDD | Left Ventricular End-Diastolic Diameter |
| LVEDP | Left Ventricular End-Diastolic Pressure |
| LVEDV | Left Ventricular End-Diastolic Volume |
| LVEF | Left Ventricular Ejection Fraction |
| LVESD | Left Ventricular End-Systolic Diameter |
| LVESV | Left Ventricular End-Systolic Volume |
| LVH | Left Ventricular Hypertrophy |
| LVID | Left Ventricular Internal Diameter |
| LVNC | Left Ventricular Noncompaction |
| LVOT | Left Ventricular Outflow Tract |
| LVPW | Left Ventricular Posterior Wall |
| MAPSE | Mitral Annular Plane Systolic Excursion |
| ME | Midesophageal |
| MI | Myocardial Infarction |
| MR | Mitral Regurgitation |
| MRI | Magnetic Resonance Imaging |
| MRSA | Methicillin-Resistant Staphylococcus Aureus |
| MS | Mitral Stenosis |
| MSD | Mean Sac Diameter |
| MTP | Metatarsophalangeal |
| MV | Mitral Valve |
| MVA | Mitral Valve Area |
| MWT | Muscle Wall Thickness |
| NICE | National Institute for Clinical Excellence |
| NICU | Neonatal Intensive Care Unit |
| NRDS | Neonatal Respiratory Distress Syndrome |
| PACS | Picture Archiving and Communication System |
| PAH | Pulmonary Arterial Hypertension |
| PAP | Pulmonary Artery Pressure |
| PASP | Pulmonary Artery Systolic Pressure |
| PCKD | Polycystic Kidney Disease |
| PCOS | Polycystic Ovarian Syndrome |
| PCWP | Pulmonary Capillary Wedge Pressure |
| PE | Pulmonary Embolism |
| PEA | Pulseless Electrical Activity |
| PH | Pulmonary Hypertension |
| PHT | Pressure Halftime |
| PID | Pelvic Inflammatory Disease |
| PLA | Parasternal Long-Axis |
| PLAPS | Posterior/Lateral Alveolar/Pleural Syndrome |
| PLs | Palpation-Derived Landmarks |
| PMI | Point of Maximal Impulse |
| PNI | Peripheral Nerve Injury |
| POCUS | Point-of-Care Ultrasound |
| PRF | Pulse Repetition Frequency |
| PSLA | Parasternal Long-Axis |
| PSV | Peak Systolic Velocity |
| PV | Pulmonic Valve |
| PVAT | Pulmonary Valve Acceleration Time |
| PVD | Posterior Vitreous Detachment |
| PWD | Pulsed-Wave Doppler |
| RA | Right Atrium |
| RAP | Right Atrial Pressure |
| RCA | Right Coronary Artery |
| RCC | Renal Cell Carcinoma |
| RCM | Restrictive Cardiomyopathy |
| REBOA | Resuscitative Endovascular Balloon Occlusion of the Aorta |
| RI | Resistive Index |
| RIMP | Right Ventricular Index of Myocardial Performance |
| ROSC | Return of Spontaneous Circulation |
| RSI | Rapid Sequence Intubation |
| RUQ | Right Upper Quadrant |
| RV | Right Ventricle |
| RVD | Right Ventricular Dysfunction |
| RVOT | Right Ventricular Outflow Tract |
| RVSP | Right Ventricular Systolic Pressure |
| RVU | Relative Value Unit |
| RWMA | Regional Wall Motional Abnormalities |
| RWT | Relative Wall Thickness |
| SAM | Systolic Anterior Motion |
| SAPB | Serratus Anterior Plane Block |
| SCM | Sternocleidomastoid |
| SFA | Superficial Femoral Artery |
| SMA | Superior Mesenteric Artery |
| SPAP | Systolic Pulmonary Artery Pressure |
| STE | Speckle Tracking Echocardiography |
| STEMI | ST-Elevation Myocardial Infarction |
| SV | Stroke Volume |
| SVC | Superior Vena Cava |
| SVV | Stroke Volume Variation |
| TAPSE | Tricuspid Annular Planar Systolic Excursion |
| TD | Tissue Doppler |
| TDI | Tissue Doppler Imaging |
| TEE | Transesophageal Echocardiography |
| TFCPR | Team-Focused Cardiopulmonary Resuscitation |
| TGC | Time Gain Compensation |
| THI | Tissue Harmonic Imaging |
| TI | Thermal Index |
| TL | True Lumen |
| TOA | Tubo-Ovarian Abscess |
| TR | Tricuspid Regurgitation |
| TRG | Tricuspid Regurgitation Gradient |
| TS | Tricuspid Stenosis |
| TTE | Transthoracic Echocardiography |
| TV | Tricuspid Valve |
| ULs | Ultrasound-Marked Landmarks |
| VF | Ventricular Fibrillation |
| VGA | Video Graphics Array |
| VM | Vastus Medialis |
| VTI | Velocity Time Integral |
| VTILVOT | LVOT Velocity Time Integral |
| WES | Wall-Echo-Shadow |
| WMA | Wall Motion Abnormality |