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Glossary of Terms 

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O.A.C.C.P.P. Ontario Association of Consultants Counsellors Psychometrists & Psychotherapists.
O.A.C.E.T.T. Ontario Association of Certified Engineering Technicians & Technologists.
O.P.H.A. Ontario Public Health Association.
O.A.P.S.W. Ontario Association of Professional Social Workers.
O.A.S.L.P.A. Ontario Association of Speech-Language Pathologists and Audiologists.
O.B.E.P. Ontario Board of Examiners in Psychology.
O.B.I.A. Ontario Brain Injury Association.
Obtunded Mental blunting; mild to moderate reduction in alertness.
Occipital Lobe Area in the back of the brain whose primary function is processing visual information. Damage to this area call cause visual deficits.
Occupational Therapist (O.T.) A health care professional who work to retrain those with brain injuries to resume the self-care activities important to daily living. They become involved in the acute rehabilitation phase. Please see page 59 for a more detailed description.
O.F.C.P. Ontario Federation of Cerebral Palsy.
O.H.A Ontario Hospital Association.
O.H.H.C.P.A. Ontario Home Health Care Providers Association.
O.H.N.A. Occupational Health Nurses Association.
O.I.A.A. Ontario Insurance Adjusters Association.
O.P.A. Ontario Psychological Association, Ontario Physiotherapy Association.
Organization, Cognitive Using selective attention skills, the patient correctly perceives stimulus attributes or task elements, selects a strategy, monitors use of the strategy and reaches a correct solution.
Low - Level Those patients who are able to sustain attention and appropriately switch sets. Patients with low level organization ability usually "fall apart" in high-stress situations.
High - Level Those patients who can deal with multiple pieces of information and integrate them for a task in a complex manner. Some patients may fall apart in high-stress situations.
Orientation An awareness of one's environment and/or situation, and the ability to use this information appropriately in a functional setting.
Orientation, Environment Knowledge regarding the present environment including where the patient is at the time of the evaluation. Accurate awareness of place.
Orientation, Left-Right The ability to discriminate between left and right body parts on oneself and on others, as well as the ability to discriminate between left and right within tile environment.
Orientation, Personal General knowledge related to oneself, includes information regarding date of birth, age, name, and location of home.
Orientation, Situational The ability to accurately describe present circumstances. For example, in the acute stages of injury, brain-injured patients may be unable to respond accurately to questions such as, "Why are you in the hospital?' Situational disorientation is commonly observed during post-traumatic amnesia.
Orientation, Temporal Knowledge of the current date, day, month and year. For example, a disoriented patient asked to name the next meal at 4 PM might say, "breakfast."
Orthopedics The branch of medicine devoted to the study and treatment of the skeletal system, its joints, muscles and associated structures.
Orthosis Splint or brace designed to improve function or provide stability.
Orthotist A skilled craftsman who develops and fits mechanical devices designed to support or supplement a weakened body part, or function, such as a brace, splint or body jacket.
O.S.O.T. Ontario Society of Occupational Therapists.
O.T. See Occupational Therapist.
Outpatient The patient residing outside the hospital but returning on a regular basis for one or more therapeutic services.
Overnight Drainage Bag (ONDB) A large thick plastic bag that is connected to a urodrain. It hangs on the bed and is used to collect urine at night or when someone needs to be in bed during the day.

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Material for the glossary was provided by the Ontario Brain Injury Association (OBIA).