Trauma Assessment for Paramedics: A Practical Guide

Introduction to Pre-Hospital Trauma Assessment

Trauma remains one of the most demanding presentations a paramedic will face. Whether you are attending a road traffic collision, an industrial injury, or a penetrating trauma in an urban setting, a structured and systematic approach to assessment can be the difference between life and death. For UK student paramedics, understanding how to rapidly identify life-threatening injuries while managing a chaotic scene is a core clinical competency that underpins both your degree and your future practice.

This guide walks through the key frameworks used in pre-hospital trauma assessment within the NHS and JRCALC context, helping you build both confidence and clinical accuracy.

Scene Safety and Mechanism of Injury

Before you even approach the patient, your assessment has already begun. Scene safety is non-negotiable. Ask yourself whether the scene is safe to enter, whether additional hazards exist (fuel leaks, unstable vehicles, live electricity), and whether you need additional resources such as the fire service or police.

Once safe, rapidly assess the mechanism of injury (MOI). The MOI gives you invaluable information about the likely injury pattern and guides your index of suspicion for hidden injuries. High-energy mechanisms — such as ejection from a vehicle, a fall from height greater than three times the patient's height, or a pedestrian struck at speed — should trigger a full trauma assessment regardless of how well the patient appears initially.

The Primary Survey: DRABC and Beyond

The primary survey in trauma follows a structured sequence designed to identify and treat immediate life threats. In the UK pre-hospital environment, this is commonly taught using the cABCDE approach, with haemorrhage control (catastrophic bleeding) addressed before airway in major trauma:

• c — Catastrophic haemorrhage: Control of life-threatening external bleeding using direct pressure, wound packing, or tourniquets where appropriate. JRCALC guidance supports the use of Combat Application Tourniquets (CAT) for limb haemorrhage that cannot otherwise be controlled.
• A — Airway: Assess for patency. Is the patient talking? Are there signs of obstruction such as stridor, gurgling, or accessory muscle use? Use basic manoeuvres (jaw thrust, head-tilt chin-lift) or adjuncts (NPA, OPA, supraglottic airway) as clinically indicated.
• B — Breathing: Look, listen, and feel. Assess respiratory rate, depth, symmetry of chest rise, and oxygen saturations. Be alert for tension pneumothorax, open chest wounds, and massive haemothorax. Needle thoracocentesis is within the paramedic scope of practice for tension pneumothorax.
• C — Circulation: Assess pulse rate, quality, capillary refill time, skin colour and temperature. Identify and manage shock. In trauma, assume haemorrhagic shock until proven otherwise.
• D — Disability: Assess the patient's level of consciousness using AVPU or GCS. Check pupillary response and blood glucose.
• E — Exposure: Expose the patient adequately to identify all injuries, then protect from hypothermia. Hypothermia worsens coagulopathy and is a key component of the lethal triad in major trauma.

Haemorrhagic Shock: Recognition and Management

Recognising shock early is critical. In trauma, the most common cause is haemorrhage. Use the classic signs — tachycardia, hypotension, prolonged capillary refill, pallor, altered consciousness — but be aware that compensated shock can mask significant blood loss, particularly in young, fit patients who can maintain their blood pressure until late decompensation occurs.

JRCALC guidance recommends a permissive hypotension strategy in penetrating trauma without suspected head injury, targeting a systolic BP of 80–90 mmHg to avoid diluting clotting factors and dislodging clots. In suspected traumatic brain injury (TBI), a higher MAP is targeted to preserve cerebral perfusion pressure.

Administer tranexamic acid (TXA) as early as possible in major haemorrhage — ideally within one hour of injury, and no later than three hours. TXA is a key intervention within JRCALC trauma guidelines and should be considered in all significant trauma with suspected internal or uncontrolled bleeding.

The Secondary Survey and ATMIST Handover

Once immediate life threats are managed and the patient is packaging for transport, conduct a secondary survey — a systematic head-to-toe assessment to identify all injuries. This includes:

1. Head and face: lacerations, bony deformity, Battle's sign, raccoon eyes, haemotympanum
2. Neck: tracheal deviation, surgical emphysema, JVD, cervical spine tenderness
3. Chest: auscultation, percussion, palpation for crepitus or instability
4. Abdomen: rigidity, distension, guarding, tenderness in all four quadrants
5. Pelvis: gentle compression for instability (do not repeat if instability found)
6. Extremities: deformity, pulse, motor function, sensation distal to injury
7. Back: log-roll if clinically indicated, assess spine and posterior thorax

On arrival at the Emergency Department, a structured ATMIST handover ensures the trauma team receives a clear and complete picture:

• A — Age
• T — Time of incident
• M — Mechanism of injury
• I — Injuries found or suspected
• S — Signs and symptoms (including vital sign trends)
• T — Treatment given and patient response

Documentation and Clinical Decision-Making

Thorough documentation is both a clinical and legal obligation. Record your findings at each stage of assessment, vital sign trends over time, all interventions administered, and the patient's response. In major trauma, early pre-alert to the receiving hospital — using a structured pre-alert call — allows the trauma team to mobilise before your arrival and significantly improves patient outcomes.

Clinical decision-making in trauma is rarely straightforward. You will face time pressure, environmental challenges, and patients who cannot give a history. Practising structured frameworks repeatedly — in simulation, in your studies, and mentally rehearsing scenarios — builds the automaticity needed to perform under pressure.

Key Takeaways for Student Paramedics

• Always start with scene safety and mechanism of injury before patient contact
• Use cABCDE to identify and treat life threats in priority order
• Administer TXA early in major haemorrhage — time is tissue
• Apply permissive hypotension principles according to injury type
• Conduct a thorough secondary survey before or during transport
• Deliver a clear ATMIST handover to optimise ED team preparation