Crisis Resource Management and human factors in Emergency Medicine

 

Crisis Resource Management in the Resuscitation Bay: A Practical Guide for the Emergency Medicine Team Leader

Executive Summary

Effective team leadership in the high-stakes environment of an emergency department (ED) resuscitation bay is defined less by technical prowess and more by the mastery of non-technical skills. Crisis Resource Management (CRM), a discipline originating from the aviation industry, provides a robust framework of behavioural and cognitive skills designed to optimise team performance and mitigate human error. Evidence indicates that communication failures are the primary root cause in over 70% of sentinel events, and human factors contribute to 60-70% of all clinical errors [1,2]. This document synthesises core principles of CRM and human factors, providing a practical blueprint for the ED team leader.

The most critical takeaways are the necessity of proactive preparation, structured communication, and continuous situational awareness. The Zero Point Survey—a framework for preparing Self, Team, and Environment before patient contact—is a foundational tool for shifting from a reactive to a proactive stance. Mastery of communication techniques, particularly Closed-Loop Communication, is non-negotiable for ensuring clarity and reducing errors; its use has been shown to accelerate task completion by a factor of 3.6 [3].

Effective leaders maintain strategic oversight, or "drone vision," fostering a shared mental model through techniques like "flying by voice" and regular team updates. They must also actively manage their own and their team's cognitive load, implementing strategies to mitigate common cognitive biases such as search satisficing and confirmation bias. This requires creating a culture of psychological safety where all team members feel empowered to speak up using tools like graded assertiveness. Ultimately, these skills are not innate; they are cultivated through deliberate practice in simulation, structured feedback using models like Advocacy-Inquiry, and a commitment to continuous system improvement.

1. The Imperative for Non-Technical Skills in Emergency Medicine

The ED is one of the highest-risk areas in healthcare, characterised by high patient turnover, time constraints, multiple interruptions, and the need to manage unrehearsed, multidisciplinary teams with limited information [4]. In this environment, human fallibility is an ever-present challenge. Research indicates that up to 90% of workplace accidents are attributed to "human error," with aviation and healthcare being industries with continuous exposure to this risk [4].

Human Factors (HF), or ergonomics, is the scientific discipline concerned with understanding the interactions among humans and other elements of a system. It applies theory and data to design systems that optimise human well-being and overall performance [5]. It considers environmental, organisational, and job factors, as well as individual characteristics that influence behaviour and can affect health and safety [5].

Crisis Resource Management (CRM) refers to the set of non-technical skills (NTS) required for effective teamwork in a crisis [6]. These are the social and cognitive proficiencies that complement technical skills to ensure safe and efficient task completion [7,8]. CRM originated in aviation in the 1970s after investigations revealed that over 70% of accidents resulted from failures in teamwork and communication, not technical deficits [9,10]. The principles were adapted for medicine, notably by David Gaba in anaesthesiology, and are directly applicable to the ED [9,10]. While often used interchangeably with HF, NTS and CRM are best understood as a critical component of the broader human factors discipline [5].

2. The Zero Point Survey: Proactive Preparation for Crisis

Effective resuscitation begins before the patient arrives. The Zero Point Survey (ZPS) is a structured mental model for preparing for a critical event, focusing on controlling key domains before the point of first patient contact [11,12].

• Ready Yourself: The first step is to manage your own physiological and psychological response to stress. An acute stress response impairs cognitive ability, multitasking, and communication [3]. Employing techniques like box breathing (inhale for four seconds, hold for four, exhale for four, hold for four) can decrease heart rate and perceived stress, allowing you to clear your mind and focus on the task [3]. Ask yourself: "Am I adequately rested and fit to fly?" [13].
• Ready Your Team: Resuscitation is a team sport. The pre-arrival period is a critical window to establish a shared mental model [3,14]. This pre-brief should cover four key points:
  1. What do we know? (Review pre-hospital information).
  2. What do we expect? (Anticipate best- and worst-case scenarios).
  3. What will we do? (Formulate a plan and contingencies).
  4. Who does what? (Allocate roles clearly) [14]. This process ensures the team is cohesive and prepared. As part of the briefing, use first names to flatten the hierarchy and create a team of equals [15].
• Ready Your Environment: A prepared leader controls the physical space to ensure it is an asset, not an obstacle. This involves "owning your resuscitative real estate" [12].
  • Declutter: Remove unnecessary equipment and people. Crowd control at the door is a designated role [3,11].
  • Expand Space: Ensure 360-degree access to the patient [11].
  • Prepare Equipment: Anticipate needs and prepare gear in advance. It is better to "look at it than look for it" [3]. This includes switching on and pre-gelling the ultrasound, drawing up RSI drugs, checking the capnograph, and having a blood warmer running [11].

3. The Leader's Blueprint: Executing Core CRM Principles

Rall and Gaba identified 15 key principles of CRM that provide a comprehensive framework for crisis management [4,6]. The following sections detail how a team leader can apply these principles in the resuscitation bay.

3.1. Exercising Effective Leadership

The team leader's primary role is not to perform procedures but to maintain strategic oversight. This "drone vision" involves coordinating the entire event without becoming fixated on a single task [10]. Standing at the foot of the bed can facilitate this global perspective [15].

• Establish Command Presence: Your physical presence is critical. Stand with an open, confident posture and make eye contact. This conveys authority and captures the team's attention [11].
• Ensure Role Clarity and Distribute Workload: Explicitly assign roles based on expertise and ensure every team member understands their responsibilities and those of others [10,13]. A balanced distribution of tasks prevents cognitive overload on any single individual [6,10].
• Set Time-Based Targets: Create urgency and focus by setting explicit goals. For example: "I want us to leave here for scan in ten minutes—that's by 7:45" [13,15]. This provides a clear, shared objective.
• Manage Team Dynamics: Flatten the hierarchy by inviting input and making it safe for team members to speak up [16]. An appropriate physical contact, like a hand on the shoulder, can help focus an individual's attention [11,15]. Use humour carefully and never at a team member's expense [13]. Remember that for some, this may be their first trauma, and they may be frightened [13,15].

3.2. Mastering High-Fidelity Communication

Suboptimal communication is the leading cause of medical error [16]. In a crisis, physicians often fail to verbalise what they are doing or why, and nurses may delay communicating identified problems [17]. Structured communication is the antidote.

Communication Strategy	Description and Key Actions
Closed-Loop Communication	A three-step process: 1) The sender gives a clear instruction, citing the receiver's name. 2) The receiver confirms they have heard and understood by repeating the instruction back. 3) The sender verifies the repeat-back was correct. The receiver should report back when the task is complete [18,19]. This improves safety and speeds up task completion [3,7].
SBAR Framework	A structured method for conveying critical information, especially during handovers. Situation: What is going on with the patient? Background: What is the clinical context? Assessment: What do I think the problem is? Recommendation: What would I do to correct it? [18,16].
Avoid Mitigating Language	Ambiguous or deferential language is dangerous in a crisis. Be polite but unequivocal. Instead of "Perhaps we should think about intubating," state clearly, "Let's intubate now" [18,17].
Graded Assertiveness (PACE)	A framework for escalating a concern when a team member is not responding. Probe: "Do you know that...?" Alert: "Can we reassess the situation?" Challenge: "Please stop what you are doing while..." Emergency: "STOP what you are doing!" [18].
5-Step Advocacy	A model for assertive communication: 1. Attention getter: "Excuse me, Doctor." 2. State your concern: "The patient is hypotensive." 3. State the problem as you see it: "I think we need to get help now." 4. State a solution: "I'll phone ICU." 5. Obtain agreement: "Does that sound good to you?" [18].
Fly by Voice	Verbalise your thought process, observations, and plans out loud. This practice, borrowed from aviation, is crucial for maintaining a shared mental model across the entire team [18,19,20].
Sterile Cockpit ("Below 10")	During critical phases of care (e.g., intubation, central line insertion), all non-essential communication must cease. This rule minimises distractions and allows proceduralists to focus [18,19]. The team should be trained to recognise and respect this state.
Podium Nurse	Assign a senior nurse to a scribe/coordination role. This individual acts as a "shadow team leader," tracking events, taking orders, reading them back, prompting the leader on time points, and maintaining 360-degree awareness without being tied to a specific task [19].

3.3. Maintaining Situational Awareness (SA)

Situational awareness is the perception of environmental elements, the comprehension of their meaning, and the projection of their status in the near future [8,10]. It is the foundation of proactive, rather than reactive, decision-making.

The three levels of SA are:

1. Level 1: Perception: What is happening? Am I aware of all available information? (e.g., noticing a rising heart rate on the monitor) [3].
2. Level 2: Comprehension: What does it mean? Synthesising information into a coherent picture (e.g., understanding that the tachycardia in the context of a positive FAST scan means active haemorrhage) [3,21].
3. Level 3: Projection: What is going to happen? Anticipating likely future events and planning accordingly (e.g., predicting the patient will require massive transfusion and activating the protocol early) [3,21].

Leaders can maintain team SA using these techniques:

• Shared Mental Model: The leader must continuously verbalise the plan, priorities, and goals to ensure everyone is "on the same page" [17,22].
• Tactical Pause / Step-Back: Periodically and deliberately stop all activity to reassess the global picture. Ask the team, "What am I missing?" This forces a moment of reflection and helps prevent fixation errors [18,19].
• Ten for Ten: A simple model for regular updates. Every 10 minutes, take 10 seconds to recap achievements, summarise the current situation, and agree on the next priorities [3].

3.4. Optimizing Resource Management

Effective crisis management involves mobilising all available resources—personnel, equipment, and cognitive aids [4,6,10].

• Call for Help Early: Recognising the potential for deterioration and seeking assistance promptly is a sign of responsible leadership, not weakness [4,6,10].
• Use Cognitive Aids: Checklists, algorithms, and protocols are not for novices; they are essential tools for experts. They reduce cognitive load, guard against memory lapses, and are a primary defence against fixation errors [4,6,10,11]. Their use is more, not less, important in urgent situations [11].

4. Managing the Human Element: Cognition, Stress, and Bias

The ED environment, with its time pressure and interruptions, forces clinicians to rely on Type 1 thinking—fast, intuitive, and pattern-based. While efficient, this mode of cognition is highly vulnerable to error [23,24]. Awareness of these cognitive traps is the first step toward mitigating them.

Cognitive Bias	Description	Mitigation Strategy
Search Satisficing	Ceasing the search for further information once the first plausible solution is found [23].	Use checklists and protocols. The leader should explicitly articulate a differential diagnosis and ask the team for alternatives.
Diagnostic Momentum	Continuing a clinical course initiated by others without independent reassessment [23].	Implement a formal "pause and plan" or "step-back" upon patient handover. Challenge the existing diagnosis.
Confirmation Bias	Interpreting new information in a way that confirms a preconceived diagnosis [23].	Explicitly ask, "What data contradicts our current hypothesis?" Actively seek disconfirming evidence.
Overconfidence	An inflated opinion of one's diagnostic ability, where confidence does not align with accuracy [23].	Mandate cross-checking of all high-risk actions (e.g., drug doses, procedures).

Factors Increasing Error Likelihood (BEWARE/HALT): Performance is significantly degraded by personal factors. The mnemonics BEWARE (Hungry, Anxious/Angry, Late, Tired) or HALTS (Hungry, Angry, Late, Tired, Stressed) serve as a personal checklist to recognise when you are most vulnerable to error [1,22].

5. Leading Through Conflict and Complexity

Resuscitation teams are often composed of individuals with different priorities and perspectives, which can lead to conflict. This is exemplified by the late-arriving specialist who is critical of the team's management [11]. The leader must bring them on board using principles of human influence and persuasion.

• Focus on the Patient: State facts that pertain directly to the patient's needs. This enhances the message's strength and makes the recipient more receptive [11].
• Ask for Help: Requesting assistance builds commitment. Politely asking, "We need your help with X, our plan is Y," is more powerful than a direct command and fosters a collaborative spirit [11].
• Use Social Proof: Frame the request as from the team. It is difficult for an individual to go against the consensus of the group ("We're inviting you to help us") [11].
• Reframe the Problem: If a direct approach is not working, reframe the issue to appeal to the other person's priorities. For example, to convince a reluctant colleague to intubate, shift from airway protection to neuroprotection: "From a neuroprotection point of view, are you happy with this pCO2?" [11].
• Use Presuppositions: Craft language carefully. A presupposition embeds a preconceived idea into a sentence as fact. For instance, "Will you be seeing Mr. Wallace on the ward or in the emergency department?" presupposes the patient will be seen, while offering an illusion of choice [11,15].

6. A Systems Approach to Safety

Individual and team performance is heavily influenced by the system in which they operate. The SEIPS (Systems Engineering Initiative for Patient Safety) model provides a framework for understanding these interactions [25]. It describes a work system composed of:

• Person (Liveware): Individuals and teams.
• Tasks: The work to be done.
• Tools & Technologies (Hardware): Equipment and IT systems.
• Physical Environment: Workspace layout, noise, lighting.
• Organisation (Software): Policies, procedures, and culture [25].

Design flaws in any of these components create performance obstacles. For instance, high noise levels in the ED are proven to reduce speech intelligibility, increase aggressive behaviour, impair teamwork, and contribute to errors [5]. A leader with systems literacy does not just compensate for these flaws but advocates for their correction [4].

7. Cultivating Expertise: Training, Debriefing, and Just Culture

CRM skills are acquired through deliberate practice, primarily in high-fidelity simulation, which allows for learning key organisational behaviours in a safe environment [9,10]. The most critical component of this learning is the debrief.

• Hot Debrief: An immediate post-event discussion to capture key learnings while fresh. The TAKE STOCK tool is a useful structure:
• 
  
  
  
• Take an instruction sheet
• Ask "Is everyone OK?"
• Know if anyone needs a break
• Equipment issues?

• Summarise the event
• Things that went well.
• Opportunities to improve (including who is responsible for actions).
• Cold debrief necessary?
• Know who was present [3].

• Debriefing with Good Judgment: This method moves beyond a "nonjudgmental" approach, which can be vague, to one that combines rigorous feedback with genuine curiosity [26]. It is enacted through Advocacy-Inquiry:
  • Advocacy: The instructor states an objective observation and their subjective judgment about it. (e.g., "I saw that you focused on finding the bag-mask while the patient's sats were dropping. I was concerned there were other ways to oxygenate.")
  • Inquiry: The instructor follows with a genuinely curious question to uncover the learner's internal "frame" or mental model. (e.g., "I'm curious, how were you seeing the situation at that time?") [26]. This technique surfaces the underlying assumptions that drove actions, allowing for deep, reflective learning.

Finally, all these practices must be supported by a Just Culture, which recognises that errors often stem from system flaws rather than individual negligence. A just and fair environment is essential for team members to feel psychologically safe enough to speak up, report near misses, and learn from mistakes without fear of blame [5,16].

References

1. Leonard M, Graham S, Bonacum D. The human factor: the critical importance of effective teamwork and communication in providing safe care. Qual Saf Health Care. 2004;13(Suppl 1):i85-90.
2. Hicks C, Petrosoniak A. The Human Factor. Emerg Med Clin North Am. 2018;36(1):1-17.
3. Mullally J, Wakefield H, Hall D. Learning about human factors in the emergency department. Don't Forget the Bubbles. 2023 May 11.
4. Bleetman A, Sanusi S, Dale T, Brace-McDonnell S. Human factors and error prevention in emergency medicine. Emerg Med J. 2012 May;29(5):389-93.
5. Davies C. Human Factors. RCEMLearning. 2023 Feb 7.
6. Nickson C. Crisis Resource Management (CRM). LITFL. 2020 Nov 3.
7. Alexandrino H, Martinho B, Ferreira L, Baptista S. Non-technical skills and teamwork in trauma: from the emergency department to the operating room. Front Med (Lausanne). 2023;10:1319990.
8. Cooper S, Endacott R, Cant R. Measuring non-technical skills in medical emergency care: a review of assessment measures. Open Access Emerg Med. 2010;2:7-16.
9. Lei C, Palm K. Crisis Resource Management Training in Medical Simulation. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024.
10. The Emergency Physician's Guide to Mastery in Crisis Resource Management and Human Factors. [Source document provided].
11. Reid C. Making Things Happen. [Video transcript]. Coda Change; YouTube.
12. The Zero Point Survey. [Video transcript]. GSAHEMS; YouTube.
13. Beardsell I. Trauma Team Leadership – Top Tips from Ten Years of Trauma Team Leadership. St.Emlyn's. 2022 Mar 29.
14. Helman A, Booth K, Hicks C, Petrosoniak A. Ep 118 Trauma – The First and Last 15 Minutes Part 1. Emergency Medicine Cases. 2018 Dec.
15. Weingart S, Reid C. EMCrit 274 – Team Leadership with Cliff Reid. EMCrit Blog. 2020 May 27.
16. The human factor: the critical importance of effective teamwork and communication in providing safe care. [Source document provided].
17. Brindley PG, Reynolds SF. Improving verbal communication in critical care medicine. J Crit Care. 2011;26(2):155-9.
18. Nickson C. Communication in a Crisis. LITFL. 2024 Oct 6.
19. Weingart S. EMCrit 230 – Resuscitation Communication. EMCrit Blog. 2018 Aug 8.
20. Reid C. Learning To Speak Resuscitese. resus.me.
21. Brindley PG, Cardinal P, editors. Optimizing Crisis Resource Management to Improve Patient Safety and Team Performance. Ottawa: Royal College of Physicians and Surgeons of Canada; 2017.
22. Blackham J, Kendall JM, Watura R. An Introduction to Human Factors and Patient Safety. RCEMLearning. 2022 Feb 4.
23. Theodoropoulos J. How Cognitive Biases Shape Decisions in Emergency Medicine. Op-Med.
24. Kahneman D. Thinking, fast and slow. New York (NY): Farrar, Straus, Giroux Press; 2011.
25. Carayon P, Wetterneck TB, Rivera-Rodriguez AJ, Hundt AS, Hoonakker P, Holden R, Gurses AP. Human factors systems approach to healthcare quality and patient safety. Appl Ergon. 2014 Jan;45(1):14-25.
26. Rudolph JW, Simon R, Dufresne RL, Raemer DB. There’s no such thing as “nonjudgmental” debriefing: a theory and method for debriefing with good judgment. Simul Healthc. 2006;1(1):49-55.

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