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I put this list together as a student, so you will see some things in here that are quite simple. You will also see some words with *s/l* beside them. These are sound-alikes. I put them in the list, the way it sounded to me, then in the right column I entered the word the way it should be, or entered a possible alternative. There are prefixes, suffixes, drugs, abbreviations,etc. Some words have definitions, some do not. Please let me know if you run across any errors and I will correct them.
AB
CD
EF
GH
IJ
KL
MN
OP
QR
ST
UV
WX
YZ
| Word or Root | Definition |
| O positive | not O-positive |
| O2 saturation | normal range 95% to 100% |
| OA *s/l OA progression* | R wave progression |
| oat straw | herbal medicine |
| OB | obliterative bronchiolitis |
| oblique | neither perpendicular or parallel; inclined |
| obliterans | |
| obstructive lung disorder | condition blocking flow of air moving in and out of the lungs |
| obstructive sleep apnea *OSA* | Obstructive Sleep Apnea *OSA* - a common respiratory sleep disorder characterized by snoring and episodes of breathing cessation that causes blood oxygen levels to fall below acceptable levels. |
| obturator | metal rod with a round tip |
| obtuse | difficult to understand; dull; not acute; not producing a sharp impression |
| occipital | back of the head |
| occipital bone | found in the skull |
| occiput | |
| occlusion | plugging; obstruction or a closing off |
| occult blood | old blood |
| occult blood, urine test | test for the presence of old blood in the urine |
| Ocean Spray *s/l* | Ocean nasal spray |
| OCP | oral contraception pill -birth control pills |
| ocul- | eye |
| OD | right eye |
| odic *s/l* | otic |
| odomed *s/l* | maybe Aldomet |
| ODTS | a febrile illness occurring after heavy organic dust exposure; symptoms resemble those of acute farmer's lung. [more] |
| of Q *s/l* | subq = subcutaneous |
| Ogilvie syndrome | pseudo-obstruction of the bowel |
| OH | occupational history |
| oid | resembling |
| OKT3 | Muromaab-CD3 *Orthocloass OKT3* |
| olecranon | elbow |
| olecranon bursa | |
| ole-small | |
| olfactory cells | responsible for smell and taste |
| olfactory nerve | responsible for sense of smell |
| olig- | few, scant, defficient |
| oligomenorrhea | scanty menstruation period |
| oligo-ovulation | irregular ovulation |
| oligospermia | scanty production and expulsin of sperm |
| oliguria | scanty production of urine |
| olisthesis | slippage |
| Olympus | a standard brand of bronchoscope |
| oma-tumor | |
| omentum | a covering; an extension of the peritoneum attached to the stomach and connecting with other abdominal organs |
| omicamycosis *s/l* | onychomycosis *disease of the nails* |
| omphacele | |
| onc | tumor or mass |
| onchomycosis | fungal disease *finger nails, toenails* |
| onchronic *s/l* | necrotic |
| oncologist | one who specializes in study & treatment of tumors *cancer* |
| one mg | 0.1 mg not 1 mg |
| one-second forced expiratory volume | FEV1 *subscript 1* |
| on lay patch *s/l* | onlay (one word) patchPaCO2 |
| onych | nail |
| onychia | inflammation of fingernail or toe |
| onychomycosis | any fungal infection of the nails |
| oophor- | ovary |
| oophorectomy | excision of an ovary |
| oophoritis | inflammation of one or both ovaries |
| OP | outpatient |
| open lung biopsy *OLB* | Open Lung Biopsy *OLB* - a small piece of lung tissue is obtained for examination by surgical incision of the chest wall *thoracotomy* performed under general anesthesia by a Thoracic Surgeon. [Procedure: Open Lung Biopsy] |
| open reduction internal fixation *ORIF* | internal surgical repair of a fracture by bringing bones back into alignment and fixing them into place, often using plates, pins, screws, etc. |
| ophthalm- | eye |
| ophthalmoscopy | use of an uphthalmoscope to view the interior of the eye |
| opia | condition of vision -opia |
| OPO | Organ Procurement and Transplantation Network |
| opportunistic infection | |
| opposed lateral ports | |
| opt- | eye |
| opthalm | eye |
| optic disc | exit site of retinal nerve fibers |
| optic nerve | nerve responsible for carrying impulses for the sense of sight from the retina to the brain |
| Opticrom | eye drops |
| or- | mouth |
| oracle *s/l* | might be auricle |
| oral cavity | cavity that receives food for digestion |
| oral contraception pill *OCP* | birth control pills |
| orbicularis | |
| orch | testis or testicles |
| orchi | testis or testicles |
| orchid | testis or testicles |
| orchidectomy | removal of a testicle |
| orchiectomy | male castration |
| orchiectomy | removal of a testicle |
| orchio | testicles |
| orchiopexy | fixation of an undescended testis in the scrotum |
| orchioplasty | repair of a testicle |
| orchitis | Inflammation of the testis. Syn: orchiditis, testitis. |
| Ordicky-Korsakov *s/l* | Wernicke-Korsakoff |
| oregano leaf | herbal medicine |
| Oregon grape root | herbal medicine |
| orexis | appetite |
| organ of Corti | organ located in the cochlea which contains receptors *hair cells* that receive vibrations and generate nerve impulses for hearing |
| organic dust toxic syndrome *ODTS* | a febrile illness occurring after heavy organic dust exposure; symptoms resemble those of acute farmer's lung. [more] |
| ORIF | open reduction internal fixation |
| origin *bone* | the place where muscle is attached to stationary bone |
| orlistat *Xenical* | drug for obesity management |
| oropharynx | central portion of the pharynx between the roof of the mouth and the upper edge of the epiglottis |
| Ortab *s/l* | Lortab |
| orth | straight normal or correct |
| Ortho-Novum 1/35-21 #12 | |
| Ortho-Novum | |
| orthopnea | ability to breathe only in an upright position |
| orthosis | use of an orthopedic appliance to maintain bony position or provide limb support *e.g., back, knee, or wrist brace* |
| orthostasis | stand straight |
| orthostatic | |
| ortitis *s/l* | otitis *re: ears* |
| OS | left eye |
| os | opening * in the opening of the cervical os *opening* |
| os calsi | |
| OSA | Obstructive Sleep Apnea *OSA* - a common respiratory sleep disorder characterized by snoring and episodes of breathing cessation that causes blood oxygen levels to fall below acceptable levels. |
| Osgood-Schlatter disease | disease of tibial tubercle |
| oskutchin | escutcheon |
| OSSA | oxacillin-sensitive staphylococcus aureus |
| ossicle | a little bone |
| ossification | bone formation process |
| oste- | bone |
| ostealagia | bone pain |
| osteitis fibrosa cystica | decalcified bones susceptible to fractures and cysts |
| ostemyelitis | bacterial infection of bone |
| osteo | spell out osteomyelitis *ex: I.V. for lower extremity osteo* |
| osteoarthritis | most common form of arthritis that especially affects weight bearing joints *e.g., knee or hip* characterized by the erosion of articular cartilidge *also refferred to as degenerative arthristis, and degenerative joint disease* |
| osteochondral | |
| osteochondritis dissecans | affects the knees and elbows |
| osteochondromata | plural for osteochondroma, also plural is osteochondromas |
| osteochondroplasty | |
| osteocytes | bone cells |
| osteodynia | bone pain |
| osteoma | bone tumor |
| osteomalacia | softening of bone |
| osteomyelitis | infection of bone and bone marrow causing inflammation |
| osteopenia | |
| osteophyte formation | |
| osteoplasty | repair of a bone |
| osteoporosis | weakening of bones by decrease in bone mass and mineral density, and enlargement of bone spaces producing fragility; caused by disturbances of nutrition and mineral metabolism. [CME module on Steroid-induced Osteoporosis ] |
| osteoporotic | |
| osteorraphy | suture of the bone |
| osteosarcoma | malignant bone tumor |
| osteotomy | an incision into bone |
| osteotomy | division of bone to correct angular or rotary deformity |
| ot- | ear |
| otalgia | earache |
| OTC | Over The Counter |
| otiliga access *s/l* | autologous access |
| otitis externa | inflammation of the external auditory canal |
| otitis media | inflammation of the middle ear |
| otoplasty | surgical repair of the external ear |
| otorrhagia | bleeding from the ear |
| otorrhea | purulent drainage from the ear |
| otosclerosis | hardening of the bony tissue in the ear |
| otoscopy | use of an otoscope to examine the external auditory canal and tmpanic membrane |
| OTS | Organ Transplant Support |
| OTT | oxygen titration test |
| OU | both eyes |
| ous-pertaining to | |
| ov- | egg |
| ova | |
| oval window | membrane that covers the opening between the middle ear and inner ear |
| ovari- | ovary |
| ovarian cyctectomy | excision of an ovarian cyst |
| ovarian cyst, chocolate | caused by endometriosis named for the thick brown fluid it contains |
| ovaries | located on each side of the uterus in the female pelvis, functioning to secrete estrogen and progesterone |
| ovary | one of two glands located on each side of the pelvic cavity thatproduce ova and female sex hormones |
| ox- | oxygen |
| oxalate | a urine test |
| Oxandrin *oxandrolone* | |
| oximeter | a noninvasive device for measuring continuously the estimated degree of oxygen saturation of the circulating blood. The oximeter 'clips' to a finger, toe, nose or ear lobe and is painless to use. |
| oximetry | noninvasive measurement of the estimated level of arterial oxygenation in circulating blood; report usually includes baseline functional O2 saturation and heart rate, as well as lowest functional O2 saturation and heart rate during monitored activity *ie exercise, oxygen therapy* |
| oxiput *s/l*- | occiput |
| oxy- | acid |
| oxybutynin chloride *Ditropan XL* | drug for overactive bladder |
| Oxygen *O2* | colorless, odorless gas essential for all life processes; the most important component of air. See Hypoxemia for symptoms of insufficient oxygenation |
| Oxygen Conserver | device designed to maintain adequate oxygenation with a reduction in flow rate. |
| oxygen debt | cumulative deficiency of oxygen that develops in the body during periods of intense activity and must be made good when the body activity returns to a normal level. In patients with severe pulmonary insufficiency, climbing a step or two can be considered 'intense activity' |
| oxygen saturation | oxygen saturation |
| oxygen tent | oxygen tent |
| oxygen therapy | use of supplemental oxygen to assure the body receives an amount suffcient to provide for its needs. *SaO2 of 90 or greater* |
| Oxygen Titration Test - see Oximetry | Oxygen Titration Test - see Oximetry |
| oxygenation | oxygenation |
| oxygen-binding capacity | oxygen-binding capacity |
| oxyhemoglobin | oxyhemoglobin |
| oxyhemoglobin saturation | oxyhemoglobin saturation |
| Oxy-Hood | Oxy-Hood |
| oxytocin | hormone secreted by the pituitary gland that causes myometrial contraction - used for induction of labor |
| oz | ounce |