CMSRN study materials
CMSRN study resources

CMSRN key terms

CMSRN · Get comfortable with the vocabulary.

Sepsis

A life-threatening organ dysfunction caused by the body's dysregulated response to infection. Signs include fever or hypothermia, tachycardia, tachypnea, hypotension, and altered mental status. Early recognition and treatment in the first hours improve survival.

Related: Delirium, Prioritization
Delirium

An acute, fluctuating disturbance of attention and awareness developing over hours to days, often triggered by infection, medications, pain, or an unfamiliar environment. It is potentially reversible and distinct from dementia; prevention and early recognition are nursing priorities.

Related: Sepsis, Restraint use
Braden Scale

A six-item risk assessment that scores sensory perception, moisture, activity, mobility, nutrition, and friction or shear to predict pressure injury risk. Lower scores indicate higher risk and prompt prevention such as repositioning, support surfaces, and nutrition support.

Related: Morse Fall Scale, Evidence-based practice
Morse Fall Scale

A scored fall-risk screening tool based on history of falling, secondary diagnoses, ambulatory aids, intravenous therapy, gait, and mental status. Higher scores trigger interventions such as bed alarms, hourly rounding, and nonskid footwear.

Related: Braden Scale, Restraint use
Neurovascular assessment

A focused check of circulation and nerve function in a limb, commonly remembered as the six Ps: pain, pallor, pulselessness, paresthesia, paralysis, and poikilothermia (coolness). Changes are reported immediately because they may signal compartment syndrome.

Related: Pain assessment, Prioritization
Hypoglycemia

Blood glucose below about 70 mg/dL, producing shakiness, sweating, hunger, confusion, or seizures. Conscious patients receive fast-acting oral carbohydrate; unconscious patients need IV dextrose or glucagon. Glucose is rechecked after treatment.

Related: Prioritization, Delirium
Fluid volume overload

Excess extracellular fluid causing weight gain, edema, crackles, jugular venous distention, and dyspnea. Nursing actions include daily weights, strict intake and output, lung sound assessment, upright positioning, and administering prescribed diuretics.

Related: Hyperkalemia, Prioritization
CAUTI

A urinary tract infection occurring in a patient who has or recently had an indwelling urinary catheter. Prevention centers on avoiding unnecessary catheters, aseptic insertion, maintaining a closed drainage system, and removing the catheter as soon as possible.

Related: Sepsis, Evidence-based practice
Blood transfusion reaction

An adverse response to a blood product such as fever, chills, hives, dyspnea, flank pain, or dark urine. The nurse stops the transfusion, keeps the line patent with normal saline, assesses the patient, and notifies the provider and blood bank.

Related: Prioritization, SBAR
Opioid-induced respiratory depression

A dangerous decrease in breathing rate and depth caused by opioids, usually preceded by increasing sedation. Nurses monitor respiratory rate, depth, and sedation level, use prescribed monitoring, and give naloxone to reverse the effect when indicated.

Related: Pain assessment, Prioritization
Restraint use

Any physical or chemical measure limiting a patient's freedom of movement, used only after less restrictive alternatives fail. It requires a provider order with time limits, ongoing monitoring, periodic release, and documentation.

Related: Delirium, Morse Fall Scale
Pain assessment

Systematic evaluation of pain using the patient's self-report as the gold standard, with numeric, facial, or verbal scales chosen by age and ability. Nonverbal patients are assessed with behavioral tools, and reassessment follows every intervention.

Related: Opioid-induced respiratory depression, Neurovascular assessment
Enteral feeding aspiration precautions

Measures that reduce the risk of stomach contents entering the lungs during tube feeding, including elevating the head of the bed 30 to 45 degrees, checking residual volume per policy, confirming tube placement, and pausing feeding before procedures.

Related: Sepsis, Delirium
Hyperkalemia

A serum potassium level above normal that can cause muscle weakness, paresthesia, and life-threatening ventricular arrhythmias such as peaked T waves. Treatment includes cardiac monitoring, IV calcium, insulin with glucose, and potassium-removing agents.

Related: Fluid volume overload, Prioritization
Teach-back

A teaching technique in which the learner explains or demonstrates information back in their own words. It reveals misunderstandings and lets the nurse reteach, confirming the patient can act safely at home.

Related: Health literacy, Discharge teaching
Health literacy

The degree to which a person can obtain, understand, and use health information to make decisions. Low health literacy is common and often hidden; plain language, pictures, and small amounts of information improve comprehension.

Related: Teach-back, Learning domains
Readiness to learn

A patient's physical, emotional, and cognitive ability and willingness to receive instruction. Pain, fatigue, anxiety, or crisis block learning, so teaching is timed for when the patient is comfortable, alert, and receptive.

Related: Motivational interviewing, Health literacy
Motivational interviewing

A collaborative, goal-oriented counseling style that helps patients find their own reasons for change. The nurse uses open questions, reflective listening, and affirmation rather than advice or argument, strengthening the patient's own commitment.

Related: Readiness to learn, Teach-back
Learning domains

The three categories of learning: cognitive (knowledge and facts), affective (attitudes, beliefs, feelings), and psychomotor (physical skills). Effective patient education addresses the domain that matches the behavior being taught.

Related: Teach-back, Readiness to learn
Discharge teaching

Structured education preparing a patient and family to manage care after leaving the hospital, covering medications, activity, diet, wound care, warning signs, follow-up appointments, and whom to call with questions.

Related: Teach-back, Transition of care, Medication reconciliation
Cultural humility

An ongoing self-reflective practice of recognizing one's own biases and power while learning about each patient's values, beliefs, language, and preferences. It supports respectful, individualized care and teaching rather than assumptions based on group identity.

Related: Health literacy, Readiness to learn
Delegation

Assigning a specific nursing task to another team member while retaining accountability for the outcome. It follows the five rights: right task, right circumstance, right person, right direction and communication, and right supervision and evaluation.

Related: Scope of practice, Chain of command
Scope of practice

The range of duties, responsibilities, and activities a nurse is legally permitted to perform, defined by state nurse practice acts, licensure, and facility policy. Nurses must decline or question tasks outside that scope.

Related: Delegation, Mandatory reporting
Chain of command

The formal hierarchy of authority used to communicate concerns, escalate unsafe situations, or obtain decisions. Staff are expected to use it when a patient is deteriorating and the immediate provider is unresponsive.

Related: SBAR, Delegation
Advocacy

Acting on behalf of a patient to protect their rights, safety, preferences, and access to care. The nurse speaks up for the patient, supports informed choices, and questions orders or conditions that threaten well-being.

Related: Informed consent, Mandatory reporting
Just culture

A workplace approach that responds to human error with support and learning while holding people accountable for reckless or knowingly unsafe behavior. It encourages reporting and improves safety without a blame-first response.

Related: Mandatory reporting, Conflict resolution
Informed consent

The patient's voluntary agreement to treatment after receiving information about its purpose, risks, benefits, and alternatives. Providers obtain consent; nurses verify understanding, witness signatures, and confirm the patient is competent and not coerced.

Related: Advocacy, Scope of practice
Mandatory reporting

A legal duty to report specified conditions, such as suspected abuse or neglect of children, older adults, or vulnerable persons, certain communicable diseases, and unsafe providers, to the designated authority.

Related: Advocacy, Scope of practice
Evidence-based practice

Clinical decision-making that integrates the best available research with the nurse's expertise and the patient's values and preferences. It commonly begins with a clinical question framed in PICO format.

Related: Braden Scale, CAUTI
Prioritization

Deciding which patient needs or nursing actions come first, typically ranking life-threatening problems (airway, breathing, circulation) above urgent and then routine concerns, and acute changes above chronic issues.

Related: Sepsis, Chain of command
SBAR

A structured communication format for handoffs and escalations: Situation, Background, Assessment, and Recommendation. It gives the receiver concise, organized information and ends with a clear request for action.

Related: Handoff, Chain of command
Handoff

The transfer of responsibility and essential patient information between caregivers or settings. A standardized format with an opportunity for questions reduces omissions, errors, and harm during shift changes and transfers.

Related: SBAR, Transition of care
Medication reconciliation

A formal process of obtaining a complete medication list, comparing it with new orders, and resolving discrepancies at admission, transfer, and discharge to prevent omissions, duplications, and harmful interactions.

Related: Transition of care, Discharge teaching
Interprofessional team

A group of professionals from different disciplines, such as nursing, medicine, pharmacy, therapy, and social work, who share goals and coordinate care for a patient. Respectful communication and clear role understanding improve outcomes.

Related: Conflict resolution, SBAR
Case management

A process of coordinating care, resources, and services for a patient across the continuum, focusing on appropriate level of care, cost, and outcomes. Case managers often arrange post-acute placement, equipment, and community support.

Related: Transition of care, Discharge teaching
Transition of care

The movement of a patient between settings, units, or providers, such as hospital to home or nursing facility. Safe transitions require timely information exchange, medication reconciliation, and teaching about self-care.

Related: Handoff, Medication reconciliation
Conflict resolution

A structured approach to disagreements among team members or with patients and families, using respectful assertive communication, focusing on interests rather than personalities, and seeking a mutually acceptable plan.

Related: Interprofessional team, Chain of command