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Medical Terminology
Symbols and Abbreviations
| Term | Definition |
|---|---|
| kilo- | symbol: k |
| centi- | symbol: c |
| milli- | symbol: m |
| micro- | symbol: mc |
| meter | symbol: m |
| kilogram | symbol: kg |
| second | symbol: s |
| mole | symbol: mol |
| minute | symbol: min |
| hour | symbol: h |
| day | symbol: d |
| month | symbol: m |
| year | symbol: a (annem) |
| carbon | symbol: C |
| calcium | symbol: Ca |
| chlorine; chloride | symbol: Cl |
| phosphorus | symbol: P |
| potassium | symbol: K |
| hydrogen | symbol: H |
| sodium | symbol: Na |
| magnesium | symbol: Mg |
| oxygen | symbol: O2 |
| water | H2O |
| sodium chloride; salt | NaCl |
| carbon dioxide | CO2 |
| hydrogen ion concentration | pH |
| Rhesus factor | Rh |
| male | ♂ |
| female | ♀ |
| infinity | ∞ |
| query; question | ? |
| micron | µ |
| absent; negative | - |
| present; positive | + |
| greater than | > |
| equal to or greater than | ≥ |
| less than | < |
| equal to or less than | ≤ |
| of; per | / |
| treatment; take; prescription | ℞ ; P |
| death | † |
| number; fracture; weight; gauge | # |
| ratio | : |
| increase | ↑ |
| decrease | ↓ |
| change | Δ |
| therefore | ∴ |
| intramuscular (into the muscle) | IM |
| intravenous (into the vein) | IV |
| subcutaneous (under the skin) | sc |
| intradermal (into the skin) | ID |
| right eye | OD (ocular dexter) |
| left eye | OS (ocular sinister) |
| both eyes | OU |
| right ear | AD (audio dexter) |
| left ear | AS (audio sinister) |
| both ears | AU |
| orally (by mouth) | PO |
| sublingual (under the tongue) | subling; SL |
| rectal (into the rectum) | R |
| per vagina (into the vagina) | PV |
| capsule(s) | caps |
| ointment | ungt; ung |
| suppository | supp |
| tablet(s) | tab |
| syrup | syr |
| drops | gtt |
| unit (insulin) | U |
| direction to patient regarding amount of medication | sig |
| as soon as possible | ASAP |
| immediately | Stat |
| morning | AM |
| afternoon | PM |
| at bedtime | hs |
| before meals | ac (ante cibum) |
| after meals | pc (post cibum) |
| as necessary | prn |
| as desired | as lib |
| every day | qd |
| twice a day | bid |
| three times a day | tid |
| four times a day | qid |
| every hour | qh; q1h |
| every two hours | q2h |
| every night at bedtime | qhs |
| every day | qd |
| every two days | q2d |
| every three days | q3d |
| application of plaster of paris cast | APPC |
| blood pressure | BP |
| dressing | drsg |
| enema | E |
| hot water bottle | hwb |
| intake and output | I&O |
| intermittent positive pressure breathing | IPPB |
| soap suds | SS |
| temperature, pulse, respiration | TPR |
| vital signs | VS |
| weight | wt |
| Dextrose in water | D/W |
| 5% dextrose in water | D5W |
| 2/3 saline and 1/3 dextrose | 2/3 - 1/3 |
| Normal saline | NS |
| To keep vein open | TKVO , TKO |
| Posterior anterior | PA |
| Barium | Ba |
| Gallbladder | GB |
| Intravenous cholangiogram | IVC |
| Intravenous pyelogram | IVP |
| Kidney, ureters, bladder ( X-ray of) | KUB |
| Lateral side | Lat |
| Upper gastrointestinal tract | UGIT |
| Blood urea nitrogen | BUN |
| Culture and sensitivity | C & S |
| Complete blood count | CBC |
| White blood count differential | diff |
| Erythrocytes sedimentation rate | ESR ; sed rate |
| Cerebrospinal fluid | CSF |
| Fasting blood sugar | FBS |
| Hemoglobin | Hb ; Hgb |
| Lumbar puncture | LP |
| Packed cell volume | PCV |
| Prothrombin time | PT ; pro time |
| Partial thromboplastin time | PPT |
| Red blood cells | rbc |
| Red blood cell count | RBC |
| Specimen | Spec |
| White blood cells | wbc |
| White blood cell count | WBC |
| Ears, eyes nose, and throat | EENT |
| Intensive care unit | ICU |
| Coronary care unti | CCU |
| Laboratory | Lab |
| Operating room | OR |
| Outpatient department | OPD |
| Recovery room | RR |
| Abdomen | abd |
| Approximately | Approx |
| Bowel movement | BM |
| Bathroom privileges | BRP |
| Cancer | Ca |
| Canadian Diabetes Association | CDA |
| Diet as tolerated | DAT |
| With | -- C |
| Without | -- S |
| Discontinue | Disc ; D/C |
| Doctor | Dr |
| Fluid | Fld |
| Irregular | Irreg |
| Left | Lt ; L |
| Medical, medication | med |
| Negative | neg |
| Nothing by mouth | npo |
| Nursing | nrsg |
| Telephone order | p/o ; t/o |
| Positive | pos |
| Right | Rt, R |
| Surgical | surg |
| Verbal order | v/o |
| partial pressure of oxygen | pO2 |
| partial pressure of carbon dioxide | pCO2 |
| arteriosclerotic heart disease | ASHD |
| congestive heart failure | CHF |
| chronic obstructive lung disease | COLD |
| chronic obstructive pulmonary disease | COPD |
| cerebrovascular accident | CVA |
| cystoscopy | cysto |
| dilation and curettage | D & C |
| electrocardiogram | ECG : EKG |
| electroencephalogram | EEG |
| examination under anaesthetic | EUA |
| incision and drainage | I & D |
| laparotomy | lap |
| myocardial infarction | MI |
| motor bike accident | MBA |
| motor vehicle accident | MVA |
| not yet diagnosed | NYD |
| submucous resection | SMR |
| short of breath | sob |
| tonsillectomy and adenoidectomy | T & A |
| transurethral resection | TUR |
| transurethral prostatic resection | TUPR |
| artificial rupture of membranes | ARM |
| antepartum | AP |
| crcumcision | circ |
| contractions | cont |
| expected date of confinement | EDC |
| fetal heart rate | FHR |
| last menstrual period | LMP |
| last normal menstrual period | LNMP |