Glossary of Healthcare Terms

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Advanced Practice Registered Nurses (APRNs)

APRNs are Registered Nurses with advanced education and training, which allows them to provide primary care services at a higher level either independently or in conjunction with physicians.

Adverse Drug Effect (ADE)

An injury caused by drugs, typically in the form of an allergic reaction or adverse physiological responses to a certain combination of medications. Preventable ADE

Age-Related Macular Degeneration (AMD)

Disease that impairs retinal function and takes predominantly two forms:

Alert Fatigue

CPOE error caused by a combination of critical medical alerts and a high volume of marginally medically consequential alerts.

Allied Health Professionals

Providers that practice


"A method of healing founded on a scientific basis."


The traditional form of medicine, whereby interventions and remedies are used to treat various illnesses or conditions.

Ambulatory Surgery Center (ASC)

A freestanding facility that is certified by Medicare that performs certain types of same-day procedures on an outpatient basis without hospitalization.

Ancillary Services and Technical Component (ASTC)

Professional charges for patient services that are delivered in conjunction with the principle practitioner that diagnoses and treats the patient. The technical component of billing, with its own CPT codes, includes equipment, supplies, and facilities.


A body of law charged with combatting anti-competitive behavior which would impair the ability of free markets to function properly. Antitrust involves the regulation of mergers and acquisitions, as well as scrutiny of behavior between competitors which may restrain trade.

Any Willing Provider Laws

Laws that require managed care plans to contract with all healthcare providers that meet their terms and conditions.

Appraisal Consulting

The development and reporting of a recommendation, analysis or opinion to solve a problem.

Appraisal Report

The development and reporting of an opinion of value of a business enterprise or equity interest in a business entity.

Appraisal Review

The development and reporting of an opinion regarding the quality of an appraisal report.
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