ACSR study materials
ACSR study resources

ACSR key terms

ACSR · Get comfortable with the vocabulary.

Sterile Field

A defined work area where only sterile items and sterile-gloved personnel may contact surfaces, maintained to prevent microorganisms from entering a surgical or invasive site.

Related: Surgical Conscience, Aseptic Technique
Aseptic Technique

A set of practices and barriers used to keep equipment and the procedural area free of pathogens, reducing the risk of infection during invasive procedures.

Related: Sterile Field, Surgical Conscience
Surgical Conscience

The personal and professional standard of honestly reporting and correcting any break in sterile technique, even when no one else observed the lapse.

Related: Sterile Field, Professional Accountability
Informed Consent

A patient's voluntary agreement to a procedure after receiving and understanding information about its purpose, risks, benefits, and alternatives.

Related: Scope of Practice, Patient Autonomy
Scope of Practice

The range of duties, procedures, and responsibilities a healthcare worker is legally and professionally permitted to perform based on licensure, training, and employer policy.

Related: Informed Consent, Delegation
Delegation

The act of assigning a task to another team member while retaining accountability for appropriate selection, instruction, and supervision of that task.

Related: Scope of Practice, Chain of Command
Standard Precautions

Infection-control practices applied to all patients regardless of diagnosis, including hand hygiene, gloves, and barriers when contact with blood or body fluids is likely.

Related: Personal Protective Equipment, Exposure Control Plan
Personal Protective Equipment

Barrier garments and devices such as gloves, gowns, masks, and eye protection worn to protect the wearer from contact with infectious or hazardous materials.

Related: Standard Precautions, Exposure Control Plan
Exposure Control Plan

A written employer program describing how occupational exposure to bloodborne pathogens is minimized, including procedures for reporting and follow-up after exposure incidents.

Related: Standard Precautions, Sharps Injury
Sharps Injury

A puncture or cut from a needle, scalpel, or other sharp item that can transmit bloodborne pathogens and requires immediate reporting and post-exposure evaluation.

Related: Exposure Control Plan, Neutral Zone
Neutral Zone

A designated area on the sterile field where sharps are placed and retrieved without hand-to-hand passing, reducing the risk of injury to team members.

Related: Sharps Injury, Sterile Field
Time-Out

A brief pause before a procedure begins in which the team verbally confirms patient identity, procedure, site, and other critical details to prevent errors.

Related: Surgical Safety Checklist, Sentinel Event
Surgical Safety Checklist

A structured list used at defined points before, during, and after a procedure to confirm essential safety steps such as identity, antibiotics, and instrument counts.

Related: Time-Out, Sponge and Instrument Count
Sponge and Instrument Count

A systematic tally of sponges, sharps, and instruments performed before, during, and at the close of a procedure to ensure no item is retained in the patient.

Related: Surgical Safety Checklist, Retained Foreign Body
Retained Foreign Body

Any surgical item left unintentionally inside a patient after a procedure, a preventable event that can cause infection, obstruction, or serious harm.

Related: Sponge and Instrument Count, Sentinel Event
Sentinel Event

An unexpected occurrence involving death or serious physical or psychological harm, or the risk of such harm, that triggers immediate investigation and corrective action.

Related: Root Cause Analysis, Retained Foreign Body
Root Cause Analysis

A structured review method that examines underlying system factors contributing to an adverse event in order to design changes that prevent recurrence.

Related: Sentinel Event, Quality Improvement
Quality Improvement

An ongoing, data-driven effort to measure performance, identify gaps, and test changes that improve patient outcomes and the reliability of care processes.

Related: Root Cause Analysis, Performance Indicator
Performance Indicator

A measurable value tracked over time to assess whether a process or outcome meets an established standard and to guide improvement efforts.

Related: Quality Improvement, Audit
Chain of Command

The defined sequence of authority and communication used to escalate concerns or resolve conflicts when standard reporting lines do not address an issue.

Related: Delegation, Speak-Up Culture
Speak-Up Culture

A workplace environment in which staff feel safe and expected to voice safety concerns or questions without fear of retaliation or embarrassment.

Related: Chain of Command, Psychological Safety
Psychological Safety

The shared belief among team members that they can raise questions, admit mistakes, or challenge decisions without punishment or humiliation.

Related: Speak-Up Culture, Professional Accountability
Professional Accountability

The obligation to accept responsibility for one's actions, decisions, and omissions, and to report errors honestly and participate in correcting them.

Related: Surgical Conscience, Psychological Safety
Patient Autonomy

The principle that patients have the right to make informed decisions about their own care, including the right to refuse or withdraw consent.

Related: Informed Consent, Confidentiality
Confidentiality

The duty to protect patient health information from unauthorized access or disclosure, sharing it only with those who need it for care or legally permitted purposes.

Related: Protected Health Information, Patient Autonomy
Protected Health Information

Individually identifiable health information that is created or maintained by a covered entity and is subject to privacy and security protections under federal law.

Related: Confidentiality, Minimum Necessary Standard
Minimum Necessary Standard

The requirement to limit access to and disclosure of patient information to the least amount needed to accomplish the intended purpose.

Related: Protected Health Information, Confidentiality
Advance Directive

A legal document in which a patient states preferences for future medical care or designates someone to make decisions if the patient loses capacity.

Related: Patient Autonomy, Informed Consent
Vital Signs

Objective measurements of body function, typically temperature, pulse, respiration, blood pressure, and oxygen saturation, used to detect changes in patient condition.

Related: Baseline Assessment, Patient Monitoring
Baseline Assessment

The initial collection of patient data at the start of care that establishes a reference point for detecting later changes in condition.

Related: Vital Signs, Patient Monitoring
Patient Monitoring

Ongoing observation and measurement of physiologic and clinical parameters during care to detect deterioration, complications, or response to intervention.

Related: Vital Signs, Baseline Assessment
Hand Hygiene

The routine cleaning of hands using soap and water or alcohol-based rub at specified moments to reduce transmission of microorganisms between patients and surfaces.

Related: Standard Precautions, Aseptic Technique
Surgical Site Infection

An infection occurring at or near an incision within a defined period after a procedure, often linked to contamination, technique, or patient risk factors.

Related: Aseptic Technique, Hand Hygiene
Electrosurgery

The use of high-frequency electrical current to cut or coagulate tissue, requiring attention to grounding, flammable materials, and safe instrument handling.

Related: Neutral Zone, Sharps Injury
Specimen Labeling

The process of accurately identifying a tissue or fluid sample with patient identifiers, specimen type, and collection details at the point of collection.

Related: Chain of Custody, Documentation Accuracy
Chain of Custody

A documented, unbroken record of who handled a specimen or item and when, used to preserve integrity for testing or legal purposes.

Related: Specimen Labeling, Documentation Accuracy
Documentation Accuracy

The practice of recording care objectively, completely, and promptly, using factual descriptions and correct patient identifiers so records reliably reflect what occurred.

Related: Late Entry, Specimen Labeling
Late Entry

A note added to a record after the time of an event, clearly marked with the actual date and time of entry and the reason it was delayed.

Related: Documentation Accuracy