Technology and Informatics

Core Concepts

The EHR: the shared source of truth

The EHR holds the problem list, allergies, medication list, vital signs, assessments, notes, orders, and results. Charting happens through admission assessments, flowsheets, and progress notes; many facilities use "chart by exception," documenting only deviations from expected findings, per institutional policy. Because the record is shared, the quality of everyone's work depends on the accuracy and timeliness of everyone's entries.

EHR vs EMR: an electronic medical record (EMR) is the record within one organization; an electronic health record (EHR) is designed to be shared across settings. The difference is one of reach — and "interoperability" (the ability of systems to exchange data) is what determines whether a patient's history follows them from hospital to clinic to home.

Safety technology at the point of care

• Computerized provider order entry (CPOE): providers enter orders directly into the system, eliminating handwritten orders and transcription errors.
• Barcode medication administration (BCMA): scanning the patient's ID band and the medication's barcode verifies the "five rights" — right patient, drug, dose, route, and time — at the bedside. The scanner checks matches; it does not judge whether the order is appropriate for this patient's condition. Override processes exist but are governed by institutional policy and should never be used casually.
• Smart infusion pumps: drug libraries with built-in dose limits and alerts catch programming errors.
• Clinical decision support (CDS): alerts, reminders, and order sets built into the record — for example, prompts tied to fall-risk or pressure-injury assessments. The benefit is fewer omissions; the risk is alert fatigue — so many warnings that clinicians begin ignoring them.

Telehealth and remote patient monitoring

Telehealth delivers health services at a distance. It can be synchronous (a live video or phone visit), asynchronous (store-and-forward: a patient uploads a photo or answers questions in a portal for later review), or continuous through remote patient monitoring (devices transmit data such as weight, blood pressure, or glucose to clinicians).

Telehealth expands access for rural, homebound, and underserved patients and reduces travel barriers. It also has limits: the clinician cannot perform a full physical assessment, and the "digital divide" — patients without internet access, devices, or digital skills — can leave the people who most need care behind. Licensure, reimbursement, and permitted nursing activities vary by state and payer.

Privacy, security, and professional behavior

HIPAA (the Health Insurance Portability and Accountability Act) sets the U.S. legal framework for protecting health information. Everyday habits that matter:

• Access only the minimum information necessary for your job — never curiosity-browse records.
• Never share passwords; lock screens and log out; use only approved devices and channels.
• Social media: no patient photos, names, or recognizable details — even "anonymized" stories can identify a patient.
• Phishing: healthcare workers are prime targets; do not click suspicious links or attachments, and report them.
• Patients have the right to see their own records and request corrections — support appropriate access rather than gatekeeping it.

From data to improvement

"Garbage in, garbage out": dashboards, registries, and research are only as good as the documentation feeding them. Structured entries (standardized scales and fields) are easier to aggregate than free text, which is one more reason to use the tools the record provides. The nurse's honest, timely charting quietly powers every quality report the hospital produces.

Common Confusions