Common Medical Abbreviation

Common Medical Abbreviation

  • ms – multiple sclerosis
  • ida – iron deficiency anemia
  • po – by mouth (per os)
  • mi – myocardial infarction
  • ams – altered mental status
  • od – right eye (oculus dexter)
  • ac – before meals (ante cibum)
  • tia – transient ischemic attack
  • cpap – continuous positive airway pressure
  • psa – prostate-specific antigen
  • app – appetite
  • ad – right ear (auris dextra)
  • ac – before meals (ante cibum)
  • ad lib – as desired
  • age – advanced glycation end-product
  • ax – axillary (armpit)
  • as – left ear (auris sinistra)
  • asa – aspirin (acetylsalicylic acid)
  • abd – abdomen
  • aa – of each (ana partes aequales)
  • a term – at term (pregnancy)
  • acdf – anterior cervical discectomy and fusion
  • adl – activities of daily living
  • adhd – attention-deficit/hyperactivity disorder
  • add – attention deficit disorder
  • amd – age-related macular degeneration
  • bid – twice a day (bis in die)
  • bd – twice a day (bis die)
  • bph – benign prostatic hyperplasia.
  • b – bilateral
  • bid – twice daily (bis in die)
  • bph – benign prostatic hyperplasia
  • bka – below knee amputation
  • bppv – benign paroxysmal positional vertigo
  • bpd – bronchopulmonary dysplasia
  • bs – blood sugar
  • bnp – brain natriuretic peptide
  • bx – biopsy
  • btl – bilateral tubal ligation
  • cl liq – clear liquid
  • ch – cholesterol
  • cd – compact disc
  • cm – centimeter
  • c/o – complains of
  • cabg – coronary artery bypass graft
  • col – colonoscopy
  • c – with (cum)
  • cll – chronic lymphocytic leukemia
  • c/f – case finding
  • c/o – complains of
  • ca – cancer
  • cms – Centers for Medicare and Medicaid Services
  • cva – cerebrovascular accident (stroke)
  • die – daily (once a day)
  • d – day
  • do – doctor of osteopathic medicine
  • doe – dyspnea on exertion
  • dka – diabetic ketoacidosis
  • dld – diffuse lung disease.
  • dcis – ductal carcinoma in situ
  • ddd – degenerative disc disease
  • djd – degenerative joint disease
  • dme – durable medical equipment
  • des – diethylstilbestrol
  • en francais – in French
  • eye – examination of the eyes
  • ear – examination of the ears
  • esu – electrosurgical unit
  • egg – electroencephalogram
  • eta – estimated time of arrival
  • ed – emergency department
  • etoh – ethanol (alcohol)
  • ed – erectile dysfunction
  • etoh – ethanol (alcohol)
  • egd – esophagogastroduodenoscopy
  • ercp – endoscopic retrograde cholangiopancreatography
  • er – emergency room
  • esbl – extended-spectrum beta-lactamase
  • evar – endovascular aneurysm repair
  • erm – erythromycin
  • emg – electromyogram
  • fit – frequency of seizures in patients with epilepsy
  • os – left eye (oculus sinister)
  • hs – at bedtime (hora somni)
  • prn – as needed (pro re nata)
  • cap – capsule
  • gm – gram.
  • gr – grain
  • gait – the manner or style of walking
  • gtt – drops (guttae)
  • gcs – Glasgow Coma Scale
  • gbs – Guillain-BarrĂ© syndrome
  • gt – granule
  • ga – gestational age
  • gdmt – guideline-directed medical therapy
  • g – gravida (number of pregnancies)
  • gi – gastrointestinal
  • gad – generalized anxiety disorder
  • gsw – gun shot wound
  • glf – ground-level fall
  • gib – gastrointestinal bleeding
  • gerd – gastroesophageal reflux disease
  • gist – gastrointestinal stromal tumor
  • gbs – Group B Streptococcus
  • gcs – Global Catalog Service
  • ha – headache
  • h/o – history of
  • hs – at bedtime (hora somni)
  • hcc – hepatocellular carcinoma
  • hld – hyperlipidemia
  • hcc – hypertrophic cardiomyopathy
  • hcm – hypertrophic cardiomyopathy
  • hlp – hyperlipoproteinemia
  • ha – hemolytic anemia
  • hl – hearing loss.
  • hld – hyperlipidemia
  • hsv – herpes simplex virus
  • hcv – hepatitis C virus
  • hm – heart murmur
  • id – intradermal
  • ich – intracerebral hemorrhage
  • is – intracranial stenosis
  • inr – international normalized ratio
  • icd – implantable cardioverter-defibrillator
  • iol – intraocular lens
  • imn – intramedullary nail
  • im – intramuscular
  • iph – intraparenchymal hemorrhage
  • ir – insulin resistance
  • i – iodine
  • id – infectious disease
  • im – infectious mononucleosis
  • itp – immune thrombocytopenic purpura
  • ild – interstitial lung disease
  • ica – internal carotid artery
  • ibs – irritable bowel syndrome
  • ich – ischemic cerebrovascular disease
  • icd – ischemic heart disease
  • jvd – jugular venous distension
  • jvp – jugular venous pressure
  • joint – examination of the joints
  • jp – Jackson-Pratt drain
  • jra – juvenile rheumatoid arthritis
  • jd – Juvenile dermatomyositis.
  • jet – joint evaluation test
  • jvd – jugular venous distention
  • jia – juvenile idiopathic arthritis
  • jra – juvenile rheumatoid arthritis
  • jp – Jackson-Pratt drain
  • jvp – jugular venous pressure
  • j – joule
  • peg-j – percutaneous endoscopic gastrostomy-jejunostomy
  • j tube – jejunostomy tube
  • double j – double J stent
  • k – potassium
  • kg – kilogram
  • kub – kidney, ureter, bladder
  • k/c/o – known or suspected
  • kvo – keep vein open
  • k/c – known case
  • ki – potassium iodide
  • ko – keep open
  • kcs – keratoconjunctivitis sicca
  • kp – keratosis pilaris
  • k/o – knock out
  • k/h/o – known history of
  • t/k – to come
  • la – left atrium
  • lb – pound
  • lad – left anterior descending (coronary artery)
  • loa – left occipito-anterior (fetal position)
  • lad – leukocyte adhesion deficiency
  • loc – loss of consciousness
  • lr – lactated Ringer’s solution
  • lbp – low back pain
  • lvh – left ventricular hypertrophy
  • luts – lower urinary tract symptoms
  • lhc – low hemoglobin count
  • lle – left lower extremity
  • lvef – left ventricular ejection fraction
  • mouth – by mouth
  • mac – mycobacterium avium complex
  • ms – mitral stenosis
  • mg – milligram
  • mi – myocardial infarction
  • mcv – mean corpuscular volume
  • md – muscular dystrophy
  • mm – millimeter
  • mva – mitral valve area
  • mds – myelodysplastic syndrome
  • mva – motor vehicle accident
  • mgus – monoclonal gammopathy of undetermined significance
  • mdd – major depressive disorder
  • mbd – minimal brain dysfunction
  • mca – middle cerebral artery
  • mr – mitral regurgitation
  • prn – as needed
  • nad – no acute distress
  • nash – non-alcoholic steatohepatitis
  • nsvt – non-sustained ventricular tachycardia
  • nagma – normal anion gap metabolic acidosis
  • nicm – non-ischemic cardiomyopathy
  • nsclc – non-small cell lung cancer
  • nsr – normal sinus rhythm
  • nkda – no known drug allergies
  • nph – neutral protamine Hagedorn (insulin)
  • od – right eye (oculus dexter)
  • os – left eye (oculus sinister)
  • ou – both eyes (oculi uterque)
  • o – oxygen
  • osa – obstructive sleep apnea
  • ou – each eye (oculus uterque)
  • oa – osteoarthritis
  • ocd – obsessive-compulsive disorder
  • oab – overactive bladder
  • orif – open reduction and internal fixation
  • om – otitis media
  • pdf – probability density function
  • post-op – postoperative
  • pr – per rectum
  • po – by mouth (per os)
  • par – post-anesthesia recovery
  • pain – pallor, diaphoresis, and nausea
  • pna – pneumonia
  • pc: after meals (post cibum)
  • pcp: Pneumocystis pneumonia
  • pe: pulmonary embolism
  • ppm: parts per million
  • pci: percutaneous coronary intervention
  • quiz: questioning to assess knowledge or understanding
  • qd: once a day (quaque die)
  • qhs: every night before bed (quaque hora somni)
  • qid: four times a day (quater in die)
  • qs: quantity sufficient
  • qhs: every night before bed (quaque hora somni)
  • qd: once a day (quaque die)
  • qam: every morning (quaque die ante meridiem)
  • qid: four times a day (quater in die)
  • qhs: every night before bed (quaque hora somni)
  • qtc: QT interval corrected for heart rate
  • qam: every morning (quaque die ante meridiem)
  • qw: every week (quaque hebdomada)
  • qt: every shift (quaque turno)
  • qrs: a wave complex on an electrocardiogram (ECG)
  • rbc: red blood cell
  • rpm: revolutions per minute
  • rx: treatment or prescription
  • ros: review of systems
  • r/t: related to
  • ra: rheumatoid arthritis
  • r/o: rule out
  • rom: range of motion
  • R/O: rule out
  • RA: rheumatoid arthritis
  • RVR: rapid ventricular rate
  • RCA: right coronary artery
  • RAD: right axis deviation
  • RLS: restless legs syndrome
  • SOL: space-occupying lesion
  • SAP: serum alkaline phosphatase
  • SPM: suprapubic pain and mass
  • SIB: selective intestinal decontamination
  • SBO: small bowel obstruction
  • SLE: systemic lupus erythematosus
  • SSS: sick sinus syndrome
  • SVT: supraventricular tachycardia
  • SDH: subdural hematoma
  • SFA: superficial femoral artery
  • Sx: symptoms
  • Tx: treatment
  • TOP: termination of pregnancy
  • TAP: transabdominal puncture
  • TAB: therapeutic abortion
  • TTP: thrombotic thrombocytopenic purpura
  • TD: tetanus and diphtheria
  • TBI: traumatic brain injury
  • TKA: total knee arthroplasty
  • TMA: thrombotic microangiopathy
  • THA: total hip arthroplasty
  • TTE: transthoracic echocardiogram
  • TURP: transurethral resection of the prostate
  • UTI: Urinary Tract Infection
  • Urea: A waste product formed in the liver and excreted by the kidneys
  • Ung: Ointment
  • UA: Urinalysis
  • UTD: Up To Date
  • UK: Unknown
  • UDS: Urine Drug Screen
  • UIP: Usual Interstitial Pneumonia
  • URI: Upper Respiratory Infection
  • UDS: Urodynamics Study
  • UTD: Ultrasound Transmitted Doppler
  • UC: Ulcerative Colitis
  • UIP: Unexplained Ipsilateral Pleural Effusion
  • UGIB: Upper Gastrointestinal Bleed
  • UTI: Urinary Tract Infection
  • US: Ultrasound
  • VIS: Vaccine Information Statement
  • VAS: Visual Analog Scale
  • VS: Vital Signs
  • VE: Venous Eczema
  • VA: Visual Acuity
  • VTE: Venous Thromboembolism
  • VRE: Vancomycin-Resistant Enterococcus
  • VC: Vital Capacity
  • VS: Vital Signs
  • VHD: Valvular Heart Disease
  • VTE: Venous Thromboembolism
  • VA: Ventricular Assist
  • VT: Ventricular Tachycardia
  • VSD: Ventricular Septal Defect
  • VATS: Video-Assisted Thoracic Surgery
  • VF: Ventricular Fibrillation
  • VDRF: Vaccine-Driven Immune Response Failure
  • With: As indicated by context
  • WNL: Within Normal Limits
  • WNL: Within Normal Limits
  • WCC: White Cell Count
  • WPW: Wolff-Parkinson-White Syndrome
  • WBAT: Weight Bearing As Tolerated
  • WOB: Work of Breathing
  • WWE: Wet-to-Dry Dressing Changes
  • X-ray: Radiography using X-rays
  • XRT: Radiotherapy
  • XR: X-Ray
  • XL: Extra Large
  • XT: Exotropia
  • XA: External Auditory
  • XI: Xerostomia Induced
  • X: Times (e.g. “take medication x3 a day”)
  • XRT: Radiation Therapy
  • XR: X-Ray
  • X-term: External Terminal
  • R/X: Prescription
  • X-ray: Radiograph
  • S/X: Soft X-Ray
  • H/X: Hard X-Ray
  • C/X: Chest X-Ray
  • YO: Years Old
  • YOF: Year Old Female
  • YAG: Yttrium Aluminum Garnet
  • YS: Yellow Streak
  • Y: Yes
  • YAG: Yttrium Aluminum Garnet
  • D/Y: Diarrhea and Vomiting
  • Y/O: Year Old
  • R/Y: Right Eye
  • Y/N: Yes or No
  • Y-GT: Gamma-Glutamyl Transferase (liver enzyme)
  • z: zero or no (in medical context)
  • z n: zero nasal (referring to the absence of nasal discharge)
  • o.d: right eye (oculus dexter)
  • o/e: examination of the eyes
  • o/w: normal saline (solution of sodium chloride in water)
  • o.u: both eyes (oculus uterque)
  • o/n: at night (nocturnal)
  • o/p: outpatient (a patient who receives medical treatment without being admitted to a hospital)
  • o/c: on call (available to work when called)
  • r/0: clear (referring to a negative result)
  • c/0: complaining of
  • pod 0: post-operative day 0 (immediately after a surgery)
  • h/0: history of
  • 1-0-0: once a day (referring to a medication schedule)
  • 0/0: no change (referring to a medical condition)
  • ecog 0: Eastern Cooperative Oncology Group performance status 0 (a measure of a patient’s performance status in cancer treatment)
  • 0/e: no evidence of (referring to a medical condition)
  • 2^0: secondary (referring to a second disease or condition)
  • d/0: dry (referring to the absence of moisture)
  • 1/52: once a week
  • 1/7: once a week
  • 10/7: ten days (referring to a time interval)
  • 1x: once (referring to a medication schedule)
  • 1 cc im: one cubic centimeter intramuscular (referring to a dose of medication administered by injection)
  • 12 lead: a 12-lead electrocardiogram (a diagnostic test for heart conditions)
  • s 1 quizlet: not a medical abbreviation
  • adhd icd 10: attention deficit hyperactivity disorder, International Classification of Diseases, 10th Revision (a diagnostic classification system used by the World Health Organization)
  • 1/52 – once a week
  • 1/12 – once a month
  • 1/7 – once a week
  • 1/24 – once every 24 hours (daily)
  • pod 1 – post-operative day 1
  • 1/1 – every day (daily)
  • 1 po qd – once a day by mouth (daily oral dose)
  • 1 bd – twice a day (two times daily)
  • 2 times a day – two times a day (twice daily)
  • 2 degree – second degree
  • 2/7 – twice a week
  • 2/52 – every two weeks
  • 2 weeks – 14 days
  • 2ww – two-week wait (waiting period in fertility treatment)
  • 24/7 – 24 hours a day, 7 days a week
  • 2ry – secondary
  • 22 – catch-22 situation (difficult circumstance with no solution)
  • 2d – two-dimensional
  • 2/2 – twice a week for two weeks
  • t 1/2 – half-life of a drug (time it takes for the concentration to decrease by half)
  • m 2 – morphine sulfate 2mg (a medication)
  • 2/52 meaning – twice a week
  • 2/7 meaning – twice a week
  • 2/24 meaning – every two hours
  • 2/12 meaning – twice a month
  • dm 2 – type 2 diabetes mellitus
  • pod 2 – post-operative day 2
  • 3/7 – three times a week
  • 3/12 – every three months
  • 3 dots – three times daily
  • 3 – third (e.g., in a list of diagnoses)
  • 3vc – forced vital capacity (the amount of air that can be forcibly exhaled from the lungs after taking a deep breath)
  • gcs 3 – Glasgow Coma Scale score of 3 (indicating severe brain injury)
  • 3/7 – three times a week
  • 3/52 – every three weeks
  • 3/12 – every three months
  • pod 3 – post-operative day 3
  • ckd 3 – Chronic Kidney Disease stage 3 (moderate reduction in kidney function)
  • gcs 3 – Glasgow Coma Scale score of 3 (indicating severe brain injury)
  • asa 3 – American Society of Anesthesiologists Physical Status Classification System score of 3 (indicating severe systemic disease)
  • cin 3 – Cervical Intraepithelial Neoplasia stage 3 (pre-cancerous cells in the cervix)
  • aki 3 – Acute Kidney Injury stage 3 (severe reduction in kidney function)
  • iv – intravenous (administration of medication or fluids into a vein)
  • 4 – fourth (e.g., in a list of diagnoses)
  • 4/52 – every four weeks
  • 4/24 – every four hours
  • 4/7 – four times a week
  • pod 4 – post-operative day 4
  • 4/12 – every four months
  • 5150 – California legal code for involuntary psychiatric hold
  • 5/7 – five times a week
  • 6/52 – every six weeks
  • 5/52 – every five weeks
  • pod 5 – post-operative day 5
  • 5/12 – every five months
  • dsm 5 – Diagnostic and Statistical Manual of Mental Disorders, 5th edition
  • 5-ht – serotonin (a neurotransmitter)
  • 5-fu – 5-fluorouracil (a chemotherapy medication)
  • 2/5 – two out of five (e.g., in reference to muscle strength on an exam)
  • 5/5 – full strength (e.g., in reference to muscle strength on an exam)
  • 6/12 – every six months
  • lvef 60 – Left Ventricular Ejection Fraction of 60% (a measure of heart function)
  • gcs 6 – Glasgow Coma Scale score of 6 (indicating moderate brain injury)
  • q.6h – every 6 hours
  • 6/12 – every six months
  • 6/24 – every six hours
  • pod 6 – post-operative day 6
  • 6/7 – six times a week
  • cfs 6 – Chronic Fatigue Syndrome score of 6 (on a scale of 0-10 indicating severity of symptoms)
  • q 6 – every 6 hours
  • 3/7 – three times a week
  • 7/7 – every day (daily)
  • 10/7 – ten days
  • 7/52 – every seven weeks
  • 14/7 – fourteen days
  • chem 7 – a blood test panel measuring seven basic metabolic markers: sodium, potassium, chloride, bicarbonate, blood urea nitrogen, creatinine, and glucose
  • s 8 – sacral dermatome level 8 (sensory region of skin innervated by a specific spinal nerve)
  • gcs 8 – Glasgow Coma Scale score of 8 (indicating moderate to severe brain injury)
  • 80 hd – 80-hour workweek limit for medical residents (maximum number of hours worked per week)
  • 8 hourly – every 8 hours
  • 8/52 – every 8 weeks
  • 8/24 – every 8 hours
  • asa 81 – American Society of Anesthesiologists Physical Status Classification System score of 81 (indicating a patient with severe systemic disease that is a constant threat to life)
  • gcs 8 – Glasgow Coma Scale score of 8 (indicating moderate to severe brain injury)
  • 8/12 – every 8 months
  • pod 8 – post-operative day 8
  • 8/7 – eight times a week
  • chem 8 – a blood test panel measuring eight metabolic markers, including the seven in chem 7 plus calcium
  • ix – medical shorthand for “investigations” (tests or procedures ordered to diagnose or monitor a medical condition)
  • pod 9 – post-operative day 9
  • gcs 9 – Glasgow Coma Scale score of 9 (indicating moderate brain injury)
  • phq 9 – Patient Health Questionnaire score of 9 (indicating mild to moderate depression)
  • ca 19-9 – a tumor marker blood test used to detect certain types of cancer, particularly pancreatic cancer
  • 9/18 – every 9 months
  • icd 9 – International Classification of Diseases, 9th edition (a medical classification system for coding diagnoses and procedures)
  • 99 ra – Rheumatoid Arthritis severity score of 99 (on a scale of 0-100)
  • 9/7 – nine times a week
  • sbp 90 – Systolic Blood Pressure of 90 mmHg (the top number in a blood pressure reading)
  • 9 hs – at 9pm (hs stands for “hora somni,” Latin for “at bedtime”)
  • 9/12 – every 9 months

Medical Prescription

  • PO – by mouth
  • QD – once daily
  • BID – twice daily
  • TID – three times daily
  • QID – four times daily
  • PRN – as needed
  • STAT – immediately
  • IM – intramuscular
  • IV – intravenous
  • SC or SQ – subcutaneous
  • SL – sublingual
  • PR – rectal
  • PC – after meals
  • AC – before meals
  • HS – at bedtime
  • NPO – nothing by mouth
  • P – after
  • C – with
  • S – without
  • AD – right ear
  • AS – left ear
  • AU – both ears
  • OD – right eye
  • OS – left eye
  • OU – both eyes
  • GTT – drops
  • mcg – micrograms
  • mg – milligrams
  • mL – milliliters
  • L – liters
  • cc – cubic centimeters
  • % – percent
  • gtt – drops
  • h – hour
  • min – minute
  • sec – second
  • CR – controlled release
  • ER – extended release
  • XR – extended release
  • IR – immediate release
  • LA – long acting
  • SA – sustained action
  • EC – enteric coated
  • PCN – penicillin
  • TMP-SMX – trimethoprim-sulfamethoxazole
  • HCTZ – hydrochlorothiazide
  • ACE – angiotensin converting enzyme
  • NSAID – non-steroidal anti-inflammatory drug
  • SSRI – selective serotonin reuptake inhibitor
  • TCA – tricyclic antidepressant.

Common Medical Term

  • Dx – diagnosis
  • Tx – treatment
  • Sx – symptoms
  • Hx – history
  • CC – chief complaint
  • FH – family history
  • PMH – past medical history
  • ROS – review of systems
  • PE – physical exam
  • BP – blood pressure
  • HR – heart rate
  • RR – respiratory rate
  • O2 – oxygen
  • SaO2 – arterial oxygen saturation
  • ABG – arterial blood gas
  • CBC – complete blood count
  • BMP – basic metabolic panel
  • CMP – comprehensive metabolic panel
  • LFT – liver function tests
  • PT – prothrombin time
  • PTT – partial thromboplastin time
  • INR – international normalized ratio
  • ECG – electrocardiogram
  • EEG – electroencephalogram
  • CT – computed tomography
  • MRI – magnetic resonance imaging
  • PET – positron emission tomography
  • CXR – chest X-ray
  • US – ultrasound
  • FNA – fine needle aspiration
  • EGD – esophagogastroduodenoscopy
  • PEG – percutaneous endoscopic gastrostomy
  • TPN – total parenteral nutrition
  • NG – nasogastric
  • PEG – percutaneous endoscopic gastrostomy
  • ENT – ear, nose and throat
  • GU – genitourinary
  • GI – gastrointestinal
  • CV – cardiovascular
  • Resp – respiratory
  • Neurol – neurologic
  • Psych – psychiatric
  • Hem – hematology
  • Onc – oncology
  • ID – infectious disease
  • Rheum – rheumatology
  • Endo – endocrinology
  • Neph – nephrology
  • OB/GYN – obstetrics and gynecology
  • PT – physical therapy.

Prescription Dosage

  • mcg – micrograms
  • mg – milligrams
  • g – grams
  • mL – milliliters
  • L – liters
  • IU – international units
  • OD – once daily
  • BD – twice daily
  • TDS – three times daily
  • QID – four times daily
  • PRN – as needed
  • HS – at bedtime
  • PC – after meals
  • AC – before meals
  • Q6h – every 6 hours
  • Q8h – every 8 hours
  • Q12h – every 12 hours
  • Q24h – every 24 hours
  • QAM – every morning
  • QPM – every evening
  • QWK – every week
  • QM – every month
  • STAT – immediately
  • NOW – right away
  • ONCE – one time only
  • BIDAC – twice daily before meals and at bedtime
  • TIDAC – three times daily before meals and at bedtime
  • POM – postoperative management
  • PR – per rectum
  • IM – intramuscular
  • IV – intravenous
  • SC – subcutaneous
  • SL – sublingual
  • GTT – drops
  • TAB – tablet
  • CAP – capsule
  • SOL – solution
  • SUSP – suspension
  • INH – inhalation
  • TOP – topical
  • OPHTH – ophthalmic
  • OTO – otic
  • RECT – rectal
  • VAG – vaginal
  • NEB – nebulizer
  • SYP – syrup
  • CR – controlled release
  • ER – extended release
  • XR – extended release
  • IR – immediate release.