Introduction to Emergency Nursing and Triage
Emergency nursing requires rapid decision-making under high-pressure conditions. The core entry point of any emergency unit is triage, a dynamic process of sorting patients based on the severity of their illness or injury rather than their arrival time. In busy Nigerian tertiary hospitals, effective triage prevents crowding and ensures critical cases receive immediate attention.
- Emergency Triage Systems: Standard frameworks like the South African Triage Scale (SATS) categorize patients into distinct color-coded urgency levels, ranging from emergency to routine.
- Rapid Assessment: The nurse evaluates vital signs, level of consciousness, and chief complaints within minutes of patient arrival.
- Resource Allocation: Triage directs limited staff, space, and equipment toward those with life-threatening conditions.
The Primary Survey: ABCDE Approach in Resuscitation
The primary survey provides a systematic framework to identify and manage immediately life-threatening conditions. Every emergency nurse must memorize and execute the ABCDE sequence without delay.
- Airway: Assess patency and clear obstructions, maintaining cervical spine protection in trauma cases.
- Breathing: Evaluate respiratory rate, depth, symmetry, and oxygen saturation.
- Circulation: Check central pulses, capillary refill, skin temperature, and control major bleeding.
- Disability: Perform a quick neurological check using the AVPU scale or Glasgow Coma Scale.
- Exposure: Undress the patient to identify hidden injuries while preventing hypothermia.
Initial Stabilization and Airway Management
Airway compromise kills faster than almost any other pathological state. Initial stabilization centers on securing an open airway and ensuring adequate oxygenation before moving to secondary concerns.
- Manual Maneuvers: Head-tilt/chin-lift or jaw-thrust techniques instantly relieve soft tissue obstruction of the pharynx.
- Airway Adjuncts: Insert oropharyngeal airways in unconscious patients or nasopharyngeal airways in semi-conscious patients to maintain patency.
- Suctioning: Clear secretions, blood, or vomitus immediately to prevent aspiration.
- Advanced Airways: Prepare equipment for endotracheal intubation or surgical cricothyroidotomy if basic maneuvers fail.
Shock Recognition and Fluid Resuscitation
Shock is a life-threatening state of systemic tissue hypoperfusion leading to cellular hypoxia and multi-organ failure. Early recognition saves lives.
| Type of Shock | Common Cause | Key Clinical Finding |
|---|
| Hypovolemic | Hemorrhage, severe dehydration | Tachycardia, cool and clammy skin |
| Septic | Severe infection, systemic inflammation | Fever, warm flushed skin early on |
| Cardiogenic | Myocardial infarction, heart failure | Pulmonary congestion, weak pulse |
| Anaphylactic | Severe allergic reaction | Bronchospasm, urticaria, hypotension |
Fluid resuscitation restores intravascular volume, typically using isotonic crystalloids like normal saline or Ringer's lactate. Nurses must monitor for signs of fluid overload, such as dyspnea and elevated jugular venous pressure, especially in cardiac patients.
The Secondary Survey and Comprehensive Patient Assessment
Once the patient is stabilized and immediate life threats are managed, the secondary survey begins. This is a head-to-toe clinical evaluation combined with a detailed history using the SAMPLE mnemonic (Symptoms, Allergies, Medications, Past medical history, Last oral intake, Events leading to injury).
The nurse inspects every body region, palpates for tenderness or deformities, auscultates breath and bowel sounds, and records baseline neurological function. Diagnostic investigations such as radiographs, point-of-care ultrasound, and blood panels are coordinated during this phase. Continuous monitoring ensures that any deterioration in the patient's condition is caught immediately.
Emergency Pharmacotherapy and Drug Administration
Emergency medication administration demands absolute precision, speed, and knowledge of pharmacodynamics. Nurses frequently administer high-alert drugs where dosage errors can prove fatal.
- Route Selection: Intravenous access is prioritized for rapid systemic effect; intraosseous access serves as an alternative when IV lines cannot be secured.
- Emergency Drugs: Epinephrine is essential for cardiac arrest and anaphylaxis, atropine for symptomatic bradycardia, and naloxone for opioid overdose.
- Double-Checking: High-risk infusions require independent double-checks by two nurses to verify calculations and concentrations.
Multidisciplinary Communication and Crisis Resource Management
Emergency situations involve chaos, time pressure, and multiple healthcare professionals. Crisis Resource Management (CRM) principles guide effective teamwork and communication.
- Closed-Loop Communication: The sender gives an instruction, the receiver repeats it back, and the sender confirms completion to prevent errors.
- Role Clarity: Every team member knows their specific responsibilities during resuscitation, reducing confusion.
- Call for Help Early: Recognizing personal or team limits and requesting assistance prevents task fixation.
- Debriefing: Post-resuscitation reviews help teams identify operational strengths and areas for improvement.
Legal, Ethical, and Documentation Standards in Nigerian Emergency Care
Emergency nurses operate under strict legal and ethical obligations defined by the Nursing and Midwifery Council of Nigeria (NMCN) and national laws.
- Duty of Care: Nurses have a legal obligation to provide care to patients presenting in emergency situations, supported by the principle of emergency exception where consent is implied for life-saving interventions.
- Accurate Documentation: Contemporary records must be contemporaneous, legible, and include exact timestamps for all interventions, vital signs, and drug administrations.
- Ethical Dilemmas: Balancing patient autonomy with the duty to preserve life frequently arises during mass casualty events or when patients refuse treatment.