A B C D E F G H I J L M N O P Q R S T U V W Y

outcomes research

Research that attempts to evaluate particular health services by tracking and analyzing clinical results (e.g., death, illness, ability to function) of various treatments. (See also Patient-Centered Outcomes Research Institute.)

outpatient

A person receiving medical services who has not been admitted to a hospital.

outpatient hospital services

Services provided to a hospital outpatient. They are covered by Part B for Medicare beneficiaries. (See Medicare chapter.)

overuse

A term used when patients receive care that is not medically indicated. Typical examples are use of antibiotics to treat a cold or the use of imaging devices for someone with the first signs of lower back pain.