Vital Signs

A Continuity of Care Document (CCD) is an XML patient summary built on the HL7 Clinical Document Architecture that lets systems exchange a standard set of clinical sections such as problems, medications, allergies, and vital signs. This post explains how the CCD relates to the broader C-CDA standard, which versions federal rules reference, and what studies of real exchanged documents found about conformance, completeness, and agreement between networks.

An Advanced APM is a Medicare payment model that qualifies clinicians for the Advanced APM track of the Quality Payment Program, which requires certified EHR technology, payment tied to quality measures, and more than nominal financial risk. This post explains the criteria in 42 CFR 414.1415, the QP thresholds, how the APM incentive fell from 5 percent to 1.88 percent, and what studies found about ACO clinicians.

Usability testing evaluates a product by watching representative users attempt typical tasks to find problems and measure satisfaction. This post explains the methods reported in a review of electronic discharge summary studies, what a site-specific testing program of 13 EHR features found, and what a scenario-based test with 12 nurses revealed about documentation screens.

A transition of care is a patient’s movement from one care setting to another, such as hospital to home or primary care to a specialist. This post explains what a meta-analysis of 16 trials of nurse-led transitional care, a network meta-analysis of 19 heart failure trials, and two stroke reviews found, and why discharge information and follow-up determine the result.

Patient-centric describes care and technology organized around the patient’s needs, preferences, and family, with open and sustained engagement. This post explains what a heuristic evaluation of two major patient portals found, what a safety-net clinic survey of 204 patients showed about digital literacy, and how one hospital co-designed a five-question tool with patients.

A medical home is a model of primary care meant to be easy to reach, ongoing, broad in scope, family-centered, coordinated, caring, and responsive to culture, with the primary care team coordinating all of a patient’s care. This post explains what the evidence shows from a claims study of 5,943 practices, a cluster randomized trial, and a systematic review in diabetes, and why implementation details and electronic communication matter.

Health informatics is a field that studies how information technology is built, adopted, and used to improve the delivery, management, and planning of health care. This post explains how it relates to clinical and public health informatics, what the 2026 revision of the TIGER competency framework says nurses need, how one graduate medical education curriculum builds the workforce, and why digital health equity belongs in the field.

A dashboard is a screen or web page that presents a current, mostly visual snapshot of key facts on progress and performance. This post explains how clinical and executive dashboards differ, what a scoping review found about clinician preferences, what a nursing-leader pilot on controlled substance reconciliation showed, and why data quality and workflow decide whether a dashboard changes anything.

A business associate is a person or organization that creates, receives, maintains, or transmits protected health information on behalf of a HIPAA covered entity, or provides certain services that involve access to it. This post explains who counts under 45 CFR 160.103, what the required contract says, and what two studies of OCR breach data found about business associates and the effect of the Omnibus Rule.

An activity tracker is a device or application that monitors fitness-related metrics such as distance, calories, heart rate, and sleep. This post explains what the evidence says about trackers and physical activity, including an umbrella review of 39 systematic reviews and a review of 18 trials in older adults, who actually wears them according to a large health system survey, and how clinical teams can handle wearable data.

Web services are a common method that lets web-based applications connect and use one another’s functions over an internet protocol backbone. This post explains the SOAP, WSDL, and XML foundations the HIMSS Dictionary names, how modern REST-style and FHIR APIs relate, what a remote clinical decision support trial and a hospital service-oriented architecture project reported, and the security and reliability questions to ask.

TCP/IP is the set of communication protocols that underlies the internet and most hospital networks: IP delivers packets from source to destination, and TCP provides a reliable, in-order stream between applications. This post explains the roles of each, how the HIPAA Security Rule’s transmission security standard relates, what a zero-trust FHIR study tested against a SYN flood, and why network reliability matters at the bedside.

QAPI, quality assurance and performance improvement, joins two mutually reinforcing parts of a quality management system into a systematic, data-driven approach to safety and quality in nursing homes. This post explains what 42 CFR 483.75 requires, what a national survey found about nursing home readiness and tool use, how small tests of change work, and how informatics teams support QAPI.

The Nursing Interventions Classification, or NIC, is a standardized classification of interventions that nurses perform, used to standardize documentation, communicate care across settings, integrate data, support research, measure productivity, and design curricula. This post explains how NIC pairs with NANDA-I diagnoses and NOC outcomes, what a 32-study systematic review found, and how linkage work supports care planning in EHRs.

A FHIR resource is the basic building block of the HL7 FHIR standard: all exchangeable content is defined as a resource with a common way of representing data, shared metadata, and a human-readable part. This post explains what every resource contains, how profiles and implementation guides narrow them, and what recent reviews found about FHIR mapping quality, machine learning systems, and a national reporting system.

A drug interaction database is a collection of information on interactions between drugs, and it is the knowledge behind the alerts clinicians see when ordering or administering medications. This post explains how these databases are used, what a meta-analysis found about alert override rates near 90 percent, what experts recommend for alert design, and how on-demand checking compares with automatic alerts.

A code set is a set of elements mapped to another set according to a coding scheme. Clinical code sets identify conditions, procedures, services, equipment, and supplies, while administrative code sets characterize entities and events for administrative processes. This post covers the medical code sets HIPAA adopted, a German study of sepsis coding accuracy, and a randomized experiment on map-assisted ICD-10-CM coding.

An ambulatory EHR is the electronic health record that supports clinics, physician offices, and other outpatient settings, with documentation, orders, results, and messaging. This post covers how it differs from inpatient systems, what national data show about adoption, and what studies of team-based documentation, AI scribes, and inbox use say about the time clinicians spend in the record.

Warm standby is a redundancy method in which a second, identical system runs in the background and receives regularly mirrored data, so the primary and secondary systems may hold different versions of the data. This post explains how it compares with hot and cold recovery, what recovery time and data loss mean for clinicians, and why HIPAA contingency planning and downtime drills still matter.

A sensitivity label is a security level associated with the content of information, marking data that carries a heightened potential for harm to the patient or others. This post explains how labels work in HL7 FHIR, why they depend on policy and trust to mean anything, and what research on granular consent and pediatric data sharing says about the challenges.