ACLS  | advanced cardiac life support |
| AED | automated external defibrillator |
| AT | atrial tachycardia |
| AV node | atrioventricular node |
| CDC | Centers for Disease Control and Prevention |
| CI | cardiac index |
| CNS | central nervous system |
| CO | cardiac output |
| CPR | cardiopulmonary resuscitation |
| CV | cardiovascular |
| CVAD | central venous access device |
| CVP | central venous pressure |
| DKA | diabetic ketoacidosis |
| DTR | deep tendon reflex |
| ECG | electrocardiogram |
| EEG | electroencephalogram |
| EF | ejection fraction |
| EMS | emergency medical service |
| ET | endotracheal |
| GI | gastrointestinal |
| GU | genitourinary |
| HHNS | hyperosmolar hyperglycemic nonketotic syndrome |
| HR | heart rate |
| IABP | intra-aortic balloon pump |
| ICD | implantable cardioverter-defibrillator |
| ICP | intracranial pressure |
| ICS | intercostal space |
| IFR | inspiratory flow rate |
| JVD | jugular vein distention |
| MAP | mean arterial pressure |
| MAT | multifocal atrial tachycardia |
| MCL | modified chest lead |
| MI | myocardial infarction |
| NRS | numeric rating scale |
| PAC | premature atrial contraction |
| PACU | postanesthesia care unit |
| PAD | pulmonary artery diastolic |
| PAM | pulmonary artery mean |
| PAP | pulmonary artery pressure |
| PAS | pulmonary artery systolic |
| PAT | paroxysmal atrial tachycardia |
| PAWP | pulmonary artery wedge pressure |
| PEA | pulseless electrical activity |
| PICC | peripherally inserted central catheter |
| PIP | peak inspiratory pressure |
| PJC | premature junctional contraction |
| PMI | point of maximal impulse |
| PSVT | paroxysmal supraventricular tachycardia |
| PVC | premature ventricular contraction |
| ROM | range of motion |
| SA node | sinoatrial node |
| SaO2 | arterial blood oxygen saturation |
| SB | sinus bradycardia |
| SpO2 | pulse oximetry blood oxygen saturation |
| ST | sinus tachycardia |
| SV | stroke volume |
| SV¯O2 | mixed venous oxygen saturation |
| VF | ventricular fibrillation |
| VT | ventricular tachycardia |