ABPath Clinical Informatics study materials
ABPath Clinical Informatics study resources

ABPath Clinical Informatics key terms

ABPath Clinical Informatics · Get comfortable with the vocabulary.

HL7 FHIR

A standard for exchanging healthcare data using modular resources and modern web technologies such as RESTful APIs. It supports granular queries, mobile applications, and incremental data exchange beyond older message-based formats.

Related: Interface Engine, Health Information Exchange
LOINC

A universal catalog of codes and names for laboratory tests and clinical observations. It lets disparate systems recognize the same test result, enabling comparable reporting, public health surveillance, and data aggregation.

Related: SNOMED CT, Cohort Identification
SNOMED CT

A comprehensive clinical terminology covering diseases, findings, procedures, and body structures, organized with formal relationships. Its hierarchy supports semantic queries and mapping among vocabularies used in problem lists and pathology reporting.

Related: LOINC, Natural Language Processing
Interface Engine

Middleware that translates, routes, and validates messages between disparate systems such as an electronic health record, laboratory instruments, and reference laboratories. It handles protocol conversion, queuing, error logging, and retry logic.

Related: HL7 FHIR, HL7 Version 2 ORU Message
Health Information Exchange

Organizational and technical arrangements that let providers share patient data across separate institutions. Exchange models include directed messaging, query-based lookup, and consumer-mediated access, each carrying distinct consent and governance requirements.

Related: Interface Engine, HL7 FHIR
Natural Language Processing

Computational methods that extract structured meaning from free text such as pathology reports and clinical notes. Techniques include named entity recognition, negation detection, and relation extraction, supporting cohort discovery, quality measurement, and research.

Related: SNOMED CT, Cohort Identification
Clinical Decision Support

Any tool that presents patient-specific knowledge or recommendations to clinicians at the point of care. Examples include alerts, order sets, reference links, and calculated scores, all intended to improve decisions and outcomes.

Related: Five Rights of CDS, Alert Fatigue, Order Set
Five Rights of CDS

A framework for effective decision support: the right information, delivered to the right person, in the right intervention format, through the right channel, at the right point in workflow.

Related: Clinical Decision Support, Workflow Analysis
Clinical Quality Language

A human-readable, machine-executable expression language for specifying clinical logic. It underpins electronic clinical quality measures and shareable decision support rules, using patient data elements and timing operators.

Related: Clinical Decision Support, Order Set
Alert Fatigue

Desensitization that occurs when clinicians face too many low-value notifications, leading them to ignore or override important ones. It is a leading contributor to health IT safety events and a target for decision support optimization.

Related: Clinical Decision Support, Just Culture
Order Set

A grouped, preconfigured collection of orders, defaults, and guidance for a common clinical scenario. Well-designed order sets standardize care, reduce omissions, and embed evidence at the moment of ordering.

Related: Clinical Decision Support, Five Rights of CDS
Requirements Traceability Matrix

A document mapping each stated requirement to design elements, build components, and test cases. It demonstrates coverage, exposes gaps, and supports change control and regulatory documentation during implementation.

Related: User Acceptance Testing, Change Control
User Acceptance Testing

Structured testing in which representative end users execute realistic scenarios against a configured system to confirm it supports their workflows before go-live. Defects found are triaged and resolved or accepted with mitigation.

Related: Requirements Traceability Matrix, Go-Live and Cutover
Go-Live and Cutover

The planned transition from an old system or process to the new one, including final data conversion, activation, and a support surge. Careful sequencing, checklists, and rollback plans reduce disruption to patient care.

Related: User Acceptance Testing, Downtime Procedure
Workflow Analysis

Systematic observation and mapping of how work actually gets done, including roles, handoffs, and information needs. Findings inform design decisions and reveal mismatches between the software and real clinical practice.

Related: Five Rights of CDS, User Acceptance Testing
Downtime Procedure

Documented steps for continuing operations when an information system is unavailable, whether planned or unplanned. It covers paper forms, result communication, order entry, and reconciliation of data after restoration.

Related: Go-Live and Cutover
Data Governance

The decision rights, policies, and accountability structures that determine how data assets are defined, protected, accessed, and used. It balances analytic value against privacy, quality, and regulatory obligations.

Related: Data Steward, Data Quality Dimensions
Data Steward

A named role accountable for the quality, definitions, and appropriate use of a data domain such as laboratory results. Stewards resolve conflicts, approve metadata changes, and monitor quality metrics.

Related: Data Governance, Enterprise Master Patient Index
Enterprise Master Patient Index

A system that links and reconciles patient identities across multiple applications and facilities. Probabilistic and deterministic matching, plus stewardship of potential duplicates, protect against split or overlapped records.

Related: Data Governance, Data Steward
Data Quality Dimensions

Attributes used to judge fitness of data, commonly completeness, accuracy, timeliness, consistency, and validity. Measuring them reveals where analytics and reporting may mislead, and prioritizes remediation work.

Related: Data Governance, Cohort Identification
Cohort Identification

The process of selecting patients meeting defined clinical, laboratory, or demographic criteria from available data. Accurate phenotyping requires validated logic, terminology mapping, and attention to missing or misclassified data.

Related: LOINC, Natural Language Processing, Data Quality Dimensions
HIPAA Security Rule

Regulation requiring covered entities to protect electronic protected health information through administrative, physical, and technical safeguards. It mandates risk analysis, access controls, audit trails, integrity protection, and transmission security.

Related: Minimum Necessary Standard, Role-Based Access Control, Business Associate Agreement
Minimum Necessary Standard

The principle that uses and disclosures of protected health information should be limited to the least amount needed for the intended purpose. It shapes report design, access roles, and data extracts.

Related: HIPAA Security Rule, Role-Based Access Control
Business Associate Agreement

A contract obligating a vendor that handles protected health information on behalf of a covered entity to meet specified privacy and security requirements, including breach reporting and safeguards, before data may be shared.

Related: HIPAA Security Rule, Safe Harbor De-identification
Safe Harbor De-identification

A regulatory method that removes a specified list of identifiers, such as names, precise dates, and geographic subdivisions, so remaining data is presumed not individually identifiable. Statistical re-identification risk is not formally assessed.

Related: Minimum Necessary Standard, HIPAA Security Rule
Role-Based Access Control

An access model that grants permissions according to job function rather than individual identity. It simplifies administration and supports least privilege when roles are well designed and periodically reviewed.

Related: HIPAA Security Rule, Minimum Necessary Standard
Plan-Do-Study-Act

An iterative improvement cycle in which a small change is tested, observed, and analyzed before being adopted, adapted, or abandoned. Repeated cycles build evidence for scaling changes in complex clinical systems.

Related: Statistical Process Control Chart, Root Cause Analysis
Root Cause Analysis

A structured retrospective review of a serious event that maps contributing factors across people, processes, technology, and environment, then identifies system-level changes more likely to prevent recurrence than individual blame.

Related: Failure Mode and Effects Analysis, Just Culture
Failure Mode and Effects Analysis

A prospective team method that identifies ways a process or device can fail, estimates severity, likelihood, and detectability, and prioritizes redesign before harm occurs. It suits high-risk informatics workflows such as medication ordering.

Related: Root Cause Analysis, Plan-Do-Study-Act
Statistical Process Control Chart

A time-series plot with control limits that distinguishes common-cause variation from special-cause signals. It helps teams judge whether an intervention genuinely changed performance rather than reflecting normal fluctuation.

Related: Plan-Do-Study-Act, Data Quality Dimensions
Just Culture

An organizational stance that encourages reporting of errors and near misses while holding people accountable for reckless behavior. It supports learning from health IT safety events instead of punitive responses.

Related: Root Cause Analysis, Alert Fatigue
Stakeholder Analysis

Identifying the individuals and groups affected by or able to influence a change, along with their interests, influence, and concerns. Results guide communication, engagement, and coalition building.

Related: ADKAR, Steering Committee
ADKAR

A change management model describing five sequential outcomes individuals need: awareness, desire, knowledge, ability, and reinforcement. It focuses on personal transitions that must occur for organizational change to succeed.

Related: Stakeholder Analysis, Change Control
Change Control

A formal process for proposing, assessing, approving, testing, and documenting modifications to a production system. It prevents untested changes from reaching clinicians and preserves an auditable history.

Related: Steering Committee, Requirements Traceability Matrix
Steering Committee

A cross-functional oversight body that prioritizes informatics requests, allocates resources, and resolves escalations. It aligns projects with organizational strategy and provides accountable decision-making for competing demands.

Related: Stakeholder Analysis, Change Control
Laboratory Information System

Software supporting preanalytic, analytic, and postanalytic laboratory work: order entry, specimen tracking, instrument interfaces, result validation, reporting, and billing. It is the operational core of the clinical laboratory.

Related: Interface Engine, Autoverification, HL7 Version 2 ORU Message
Autoverification

Rules that release laboratory results without manual review when they meet defined criteria such as reference range, delta checks, and analyzer flags. Exceptions route to technologists, improving turnaround while preserving safety.

Related: Laboratory Information System, CLIA
Whole Slide Imaging

Digitizing glass slides into high-resolution image files viewed on a computer. Validated systems support primary diagnosis, remote consultation, image analysis, and archiving, with requirements for scanners, viewers, and network capacity.

Related: Laboratory Information System, CLIA
HL7 Version 2 ORU Message

A widely used message type for transmitting observation results from laboratory or imaging systems to receiving applications. Segments carry patient identification, orders, observations, reference ranges, and abnormal flags.

Related: Interface Engine, Laboratory Information System
CLIA

United States federal law regulating laboratory testing through certification, quality standards, and proficiency testing. It defines test complexity categories and sets requirements that laboratory information systems must support, such as result reporting and record retention.

Related: Autoverification, Laboratory Information System