| Term | Definition |
| a-, an- | without |
| endo- | inside |
| epi- | on, over |
| iso- | same |
| peri- | around |
| poly- | many |
| deca- | ten |
| kilo- | thousand |
| deci- | tenth |
| centi- | hundredth |
| milli- | thousandth |
| micro- | millionth |
| nano- | billionth |
| -ectomy | surgical removal |
| -emia | blood condition |
| -itis | inflammation |
| -oma | tumor, growth |
| -osis | condition |
| -pathy | disease |
| -penia | deficiency |
| -plasty | shape or form |
| -stasis | stopping, control |
| -stomy | opening |
| -tomy | cut |
| agglut- | clump together |
| arthro- | joint |
| hepato- | liver |
| necro- | death |
| nephr- | kidney |
| oste- | bone |
| phago, phage | eat |
| phlebo- | vein |
| pneu-, -pnea | breath |
| pulmon- | lung |
| ren- | kidney |
| spleno- | spleen |
| thromb- | clot |
| tox-, toxico- | poison |
| veno- | vein |
| AC | accommodation |
| AC, ac | before meals |
| AD | right ear (auris dextra) |
| ad lib | as desired |
| adeno-CA | adenocarcimoma |
| AE | above the elbow; adverse effects |
| AGN | acute glomerulonephritis |
| AIDS | acquired immunodeficiency syndrome |
| AK | above the knee |
| ALL | acute lymphocytic leukemia |
| AMA | American Medical Association, against medical advice |
| AMI | acute myocardial infarction |
| AML | acute myelocytic leukemia |
| ARDS | adult respiratory distress syndrome |
| ASAP | as soon as possible |
| BID, bid | twice a day |
| BIN, bin | twice a night |
| BK | below the knee |
| BM | bowel movement |
| BP | blood pressure |
| Bx | biopsy |
| C | Celsius, centrigade |
| c | with |
| CA, Ca | cancer |
| CAD | coronary artery disease |
| CAT | computerized axial tomography |
| CC | chief complaint |
| cc | cubic centimeter |
| CGN | chronic glomerulonephritis |
| CHF | congestive heart failure |
| CLL | chronic lymphocytic leukemia |
| cm | centimeter |
| CML | chronic myelocytic leukemia |
| CNS | central nervous system |
| CO 2 | carbon dioxide |
| COLD | chronic obstructive lung disease |
| contra | against |
| COPD | chronic obstructive pulmonary disease |
| CV | cardiovascular |
| CVA | cerebrovascular accident |
| CVD | cardiovascular disease |
| CXR | chest x-ray; chest radiograph |
| /d | per day |
| D & C | dilation and curettage |
| D & E | dilation and evacuation |
| DM | diabetes mellitus |
| DNA | deoxyribonucleic acid |
| DO | doctor of osteopathy |
| DPT | diphtheria-pertussis-tetanus |
| DVT | deep vein thrombosis |
| Dx | diagnosis |
| EENT | eye, ear, nose and throat |
| ENT | ear, nose and throat |
| FHR | fetal heart rate |
| FHT | fetal heart tone |
| Fx | fracture |
| gt, gtt | drop, drops |
| HCI | hydrochloric acid |
| Hg | mercury |
| I & D | incision and drainage |
| IM | intramuscular |
| kg | kilogram |
| KUB | kidney, ureter, bladder |
| LAT, lat | lateral |
| LMP | last mentrual period |
| OA | osteoarthritis |
| OC | oral contraceptives |
| od | once a day |
| OHS | open heart surgery |
| Ortho | orthopedics;orthopaedics |
| OS | left eye (oculus sinister) |
| os | mouth |
| OT | occupational therapy |
| O2, OU | both eyes (oculi unitas) |
| Pap | Papanicolaou (smear) |
| PC, pc | after meals |
| ph | hydrogen ion concentration |
| PICU | pulmonary intensive care unit (also pediatric) |
| PID | pelvic inflammatory disease |
| PMP | previous mentrual period |
| PO | orally (per os) |
| prn | as required |
| PVC | premature ventricular contraction |
| qd | every day |
| qh | every hour |
| q2h | every two hours |
| QID, qid | four times a day |
| qm, qam | every morning |
| R | respiration |
| RNA | ribonucleic acid |
| Rx | prescription |
| s | without |
| SICU | surgical intentive care unit |
| SOS | if necessary |
| T & A | tonsillectomy and adenoidectomy |
| TPR | temperature, pulse, respiration |
| ABG | arterial blood gas |
| ACE | angiotensin converting enzyme |
| ACTH | adrenocorticotropic hormone |
| ADH | antidiuretic hormone |
| ALP | alkaline phosphatase |
| ALS | amyotrophic lateral sclerosis |
| ALT | alanine aminotransferase |
| ANA | antinuclear antibody |
| AST | aspartase aminotransferase |
| ATP | adenosine triphosphate |
| BUN | blood urea nitrogen |
| C & S | culture and sensitivity |
| CK | creatine kinase |
| CSF | cerebrospinal fluid |
| CT | computed tomography |
| ESR | erythrocyte sedimentation rate |
| FSH | follicle-stimulating hormone |
| FTA-ABS | fluorescent treponemal antibody absorption test |
| GGT | y-glutamyltransferase |
| GH | growth hormone |
| HBsAG | hepatits B surface antigen |
| HCV | hepatitis C virus |
| IRDS | infant respiratory distress syndrome |
| KOH | potassium hydroxide |
| MSH | melanocyte-stimulating hormone |
| O & P | ova and parasites |
| PSA | prostate-specific antigen |
| PTH | parathyroid hormone |
| RA | rheumatoid arthritis |
| SLE | systemic lupus erythematosus |
| T3 | triiodothyronine |
| T4 | thyroxine |
| TSH | thyroid-stiumlating hormone |
| TSS | toxic shock syndrome |
| APTT | activated partial thromboplastin time |
| AV | atrioventricular |
| DIC | disseminated intravascular coagulation |
| FDP | fibrin degradation product |
| FSP | fibrin split product |
| HLA | human leukocyte antigen |
| LD | lactate dehydrogenase |
| MHC | major histocompatibility complex |
| NK | natural killer |
| PMN | polymorphonuclear leukocyte |
| SCID | severe combined immune deficiency |
| SEG | segmented neutrophil |
| TIBC | total iron-binding capacity |
| t-PA | tissue plasminogen activator |
| CLSI | Clinical and Laboratory Standards Institute |
| EDTA | ethylenediaminetetraacetic acid |
| PST | plasma separator tube |
| SPS | sodium polyanetholesulfonate |
| SST | serum separator tube |
| HCG | human chorionic gonadotropin |
| RF | rheumatoid factor |