| A | B |
| ACE | angiotensin converting enzyme |
| AF | atrial fibrillation |
| ALT | alanine aminotransferase (SGPT) |
| AMI | acute myocardial infarction |
| APC | atrial premature complex |
| AR | aortic regurgitation |
| AS | aortic stenosis; arteriosclerosis |
| ASCVD | arteriosclerotic cardiovascular disease |
| ASD | atrial septal defect |
| ASHD | arteriosclerotic heart disease |
| AST | aspartate aminotransferase (SGOT) |
| AT | atrial tachycardia |
| AV | atrialventricular |
| BBB | bundle branch block (left or right) |
| CABG | coronary artery bypass graft |
| CAD | coronary artery disease |
| CCU | coronary care unit |
| CHD | coronary heart disease |
| CHF | congestive heart failure |
| C(P)K | creatine (phospho)kinase |
| CPR | cardiopulmonary resuscitation |
| CVP | central venous pressure |
| DOE | dyspnea on exertion |
| DVT | deep vein thrombosis |
| EKG (ECG) | electrocardiogram |
| HDL | high density lipoprotein |
| HTN | hypertension |
| IVCD | intraventricular conducton delay |
| JVP | jugular venous pulse |
| LAD | left anterior descending (coronary artery) |
| LAHB | left anterior hemiblock |
| LDH | lactic dehydrogenase |
| LDL | low density lipoprotein |
| LV | left ventricle |
| LVAD | left ventricular assist device |
| LVEDP | left ventricular end-diastolic pressure |
| MI | myocardial infarction |
| mm Hg | millimeters mercury |
| MR | mitral regurgitation, reflux |
| MS | mitral stenosis |
| MUGA | multigated acquisition (scan) |
| MVP | mitral valve prolapse |
| NSR | normal sinus rhythm |
| P | pulse |
| PAP | pulmonary arterial pressure |
| PMI | point of maximal impulse |
| PSVT | paroxysmal supraventricular tachycardia |
| PTCA | percutaneous transluminal coronary angioplasty |
| PVC | premature ventricular contraction |
| PVD | peripheral vascular disease |
| PWP | pulmonary (artery) wedge pressure |
| PYP | pyrophosphate (scan) |
| S1 | the first heart sound |
| S2 | the second heart sound |
| SA | sinoatrial |
| SBE | subacute bacterial endocarditis |
| SGOT | serum glutamic oxaloacetic transaminase (AST) |
| SK | streptokinase |
| SVT | supraventricular tachycardia |
| tPA | tissue plasminogen activator |
| VF | ventricular fibrillation |
| VLDL | very low density lipoprotein |
| VPC | ventricular premature complex |
| VSD | ventricular septal defect |
| VT | ventricular tachycardia |
| WPW | Wolff-Parkinson-White syndrome |