Unit
- Intensive Care Unit (ICU): A specialized hospital unit providing continuous monitoring and treatment for patients with life-threatening conditions, particularly respiratory failure, shock, and multi-organ dysfunction. The ICU relies on a multidisciplinary team including intensivists, critical care nurses, respiratory therapists, pharmacists, and nutritionists who collaborate to deliver coordinated care.
- Team structure: The attending intensivist leads daily rounds with input from consulting specialists such as pulmonologists, cardiologists, and infectious disease physicians. Nurses provide hour-to-hour bedside assessment, while respiratory therapists manage ventilators and airway devices. This hierarchy ensures comprehensive care but requires clear communication to avoid errors.
- Daily workflow: Morning rounds include review of vital signs, ventilator settings, laboratory results, imaging, and medication adjustments. Each patient receives a problem list and a daily goal sheet to align the team's priorities. Afternoon and evening shifts focus on implementing the plan and responding to acute changes.
- Handoff communication: Structured tools like the SBAR (Situation-Background-Assessment-Recommendation) framework reduce information loss during shift changes. Standardized handoffs include a brief summary, pending results, and contingency plans, improving patient safety and continuity.
- Documentation: Accurate charting in the electronic health record (EHR) captures hourly assessments, ventilator settings, medication infusions, and interventions. The EHR also serves as a legal record and supports quality improvement audits.
- Protocols and bundles: ICUs commonly use evidence-based bundles for ventilator-associated pneumonia (VAP), central line-associated bloodstream infections (CLABSI), and sepsis. Protocol adherence reduces variability and improves outcomes.
- Family communication: Daily family updates, often during rounds or at specified times, help manage expectations and reduce stress. Social workers and chaplains provide emotional support and help with decision-making.
- Quality metrics: ICUs track standardized mortality ratios, length of stay, ventilator days, and complication rates. These metrics guide continuous improvement and benchmarking against national standards.
- Environment and safety: ICUs employ negative pressure isolation rooms for airborne infections, alarm management systems to reduce noise fatigue, and daily checklists for line maintenance and catheter care. Hand hygiene compliance is monitored, and safety huddles identify near-misses, all of which minimize cross-contamination and iatrogenic harm.
- Patient monitoring technology: Continuous telemetry, arterial lines for beat-to-beat blood pressure, central venous pressure waveforms, and pulse oximetry enable rapid detection of hemodynamic instability. Advanced tools such as cardiac output monitoring via thermodilution or transpulmonary thermodilution assist in titrating vasoactive agents and fluids for complex shock states.
Scope of Practice
Role: Critical Care Nurse in the ICU
Within scope:
- Performing continuous patient assessment and monitoring of vital signs, oxygen saturation, and cardiac rhythm
- Administering medications, titrating vasoactive drips, and managing sedation according to protocols
- Operating and troubleshooting mechanical ventilators, hemodialysis machines, and infusion pumps
- Coordinating with the multidisciplinary team during rounds and emergencies
- Documenting all aspects of care in the EHR and communicating changes to the physician
Outside scope:
- Diagnosing underlying diseases or interpreting complex imaging results without physician input
- Prescribing medications or initiating new therapies without an order (except under standing protocols)
- Performing invasive procedures such as central line insertion or bronchoscopy independently
- Making decisions about withdrawal of life support without consulting the care team and ethics committee
- Altering ventilator settings outside of prescribed parameters without respiratory therapist or physician approval
Quick Revision
- The ICU is a multidisciplinary environment where team dynamics and communication are critical for safe, effective care.
- Structured handoffs using SBAR and standardized protocols reduce errors and improve outcomes.
- Documentation in the EHR supports continuity, legal compliance, and quality improvement.
- Quality metrics such as standardized mortality ratio and ventilator days guide performance improvement.