A nurse is caring for a client with a complete T10 spinal cord injury who was admitted 2 hours ago following a diving accident. The client presents with bradycardia, hypotension, and absent motor function below the level of injury. Which assessment finding requires the nurse's immediate attention?
The client presents with bradycardia, hypotension, and absent motor function below the level of injury.
1Blood pressure 80/50 mmHg with heart rate 52 bpm✓ 정답
2Absence of deep tendon reflexes below T6 level
3Loss of sensation and motor function below the nipple line
4Client reports severe headache and nausea
해설
Neurogenic shock is a life-threatening complication of spinal cord injury above T6, characterized by hypotension and bradycardia. Other findings are expected in spinal cord injury but do not indicate immediate shock.
Core Nursing ExplanationKey Concept Analysis: This question tests the nurse's ability to recognize and prioritize the life-threatening complication of Neurogenic shock in a patient with a new, high-level spinal cord injury (SCI). Neurogenic shock is a distributive shock caused by the loss of sympathetic nervous system tone due to injury to the spinal cord, typically above the level of T6. This results in unopposed parasympathetic (vagal) activity, leading to vasodilation (causing hypotension) and bradycardia. The patient's presentation of bradycardia and hypotension 2 hours post-injury is the classic picture of neurogenic shock, which is an immediate threat to perfusion and life.
Answer Rationale: Key Point! The vital signs in option 1 (BP 80/50 mmHg and HR 52 bpm) are the direct, quantifiable evidence of ongoing neurogenic shock. This is a hemodynamic emergency requiring immediate intervention (e.g., IV fluids, vasopressors, atropine for severe bradycardia) to prevent end-organ damage from hypoperfusion. This finding requires the nurse's immediate attention.
Distractor Analysis:
- Watch out for confusion! Option 2: Absence of deep tendon reflexes (DTRs) below the level of injury is an expected finding in Spinal shock, a separate condition from neurogenic shock. Spinal shock refers to the temporary loss of all reflex activity, motor, and sensory function below the level of injury. While important to document, it is not an immediate life threat.
- Option 3: Loss of sensation and motor function below the nipple line (approximately T4 level) is the expected neurological deficit given a T10 injury. This confirms the level of injury but is not an acute, unstable finding requiring emergent action.
- Option 4: A severe headache and nausea in a spinal cord injury patient are red flag symptoms for Autonomic dysreflexia (AD), a hypertensive emergency that typically occurs in patients with chronic SCI above T6, not in the acute phase (2 hours post-injury). AD is characterized by severe hypertension, not hypotension. While critical, it is not the expected finding in this acute shock scenario.
Related Concepts: It is crucial to distinguish between Neurogenic shock (hemodynamic problem: hypotension, bradycardia, warm/dry skin) and Spinal shock (neurological problem: flaccid paralysis, areflexia, loss of sensation). Both can occur simultaneously after an acute SCI. Neurogenic shock is the priority due to its direct impact on survival.
Concept Summary
Concept
Definition & Cause
Key Features
Nursing Priority
Neurogenic Shock
Distributive shock from loss of sympathetic tone (SCI above T6).
Immediate: Stabilize hemodynamics (IV fluids, vasopressors).
Spinal Shock
Temporary loss of all neurological function below the injury level.
Flaccid paralysis, Areflexia, Loss of sensation/bowel/bladder.
Monitor for resolution; manage complications (skin, bladder).
Autonomic Dysreflexia (AD)
Life-threatening hypertensive crisis in chronic SCI (above T6).
Severe HA, HTN, Bradycardia, Sweating/flushing above injury.
Immediate: Sit patient up, identify/remove noxious stimulus (e.g., full bladder).
Side-by-Side Comparison!
Feature
Neurogenic Shock (Acute)
Autonomic Dysreflexia (Chronic)
Timing
Immediate to hours/days after injury.
Occurs after spinal shock resolves, in chronic phase.
Blood Pressure
Hypotension (e.g., 80/50)
Severe Hypertension (e.g., 200/100+)
Heart Rate
Bradycardia
Bradycardia (paradoxical)
Skin
Warm, dry (vasodilation).
Flushing, diaphoresis above injury; pale below.
Primary Cause
Loss of sympathetic tone.
Unchecked sympathetic response to a noxious stimulus below injury.
Anatomy, Physiology & Pharmacology Points
- Anatomy: The sympathetic nervous system fibers exit the spinal cord from T1 to L2. An injury above T6 disrupts the major sympathetic outflow to the heart and blood vessels.
- Physiology: Unopposed vagal (parasympathetic) tone leads to decreased heart rate (bradycardia) and vasodilation, causing pooling of blood in the periphery and profound hypotension.
- Pharmacology: First-line treatment includes IV crystalloids (e.g., Normal Saline) for volume. Vasopressors (e.g., Norepinephrine, Phenylephrine) are often needed to counteract vasodilation. Atropine may be used for symptomatic bradycardia.
Memory Tips
- Neurogenic Shock = "Warm and Slow Crash": Warm skin (vasodilation), Slow HR (bradycardia), Crash in BP (hypotension).
- AD vs. Neurogenic Shock: Think "High and Dry" for AD (High BP, Dry maybe from anxiety) vs. "Low and Slow" for Neurogenic Shock (Low BP, Slow HR).
- Level T6: Remember it as the critical watershed. Injuries above T6 risk both Neurogenic Shock (acute) and Autonomic Dysreflexia (chronic).
High-Frequency NCLEX Topics
Neurogenic shock is a classic NCLEX-RN priority question. The exam tests your ability to:
1. Identify the signs (hypotension + bradycardia in an SCI patient).
2. Prioritize it over other neurological findings.
3. Differentiate it from other types of shock (e.g., hypovolemic shock would present with tachycardia) and from Autonomic Dysreflexia.
Watch Out for Question Variations!
- Instead of asking for the finding requiring attention, the question may ask: "The nurse should prepare to administer which medication first?" (Answer: IV fluids or a vasopressor).
- The scenario could shift to the chronic phase and present symptoms of Autonomic Dysreflexia (severe headache, hypertension), asking for the first nursing action (Answer: Sit the patient upright).
- A question might combine SCI with other trauma, testing if you recognize neurogenic shock amidst potential internal bleeding (which would cause tachycardia).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse in the Emergency Department. A 22-year-old male is brought in via ambulance after a diving accident. He is immobilized on a backboard with a cervical collar. Initial assessment reveals he is alert but anxious, with flaccid paralysis of his lower extremities. His initial vital signs were BP 92/60, HR 58. Two hours into his ED stay, you reassess and find his BP is now 80/50 and HR is 52.
Nursing Intervention Strategy:
1Immediate Assessment & Action (ABCs)
Airway/BreathingEnsure patent airway. High cervical injuries (C3-C5) can impair diaphragmatic function. Monitor oxygen saturation and respiratory effort.
CirculationRecognize the vital sign trend as neurogenic shock. This is your priority. Call the provider immediately.
- Start two large-bore IV lines and initiate an isotonic crystalloid (Normal Saline or Lactated Ringer's) bolus as ordered.
- Connect to continuous cardiac monitoring. Anticipate orders for vasopressors (e.g., norepinephrine drip) and atropine for significant bradycardia.
2Ongoing Monitoring- Monitor BP, HR, and urine output (via Foley catheter) closely to assess perfusion. Goal: Mean Arterial Pressure (MAP) > 65 mmHg to ensure spinal cord perfusion.
- Perform frequent neurological checks (motor/sensory level) to establish a baseline and monitor for any ascending injury.
- Maintain spinal immobilization until cleared by imaging.
3Preventing Complications- Turn patient every 2 hours with log-rolling technique to prevent pressure injuries.
- Implement passive range of motion exercises to prevent contractures.
- Monitor for signs of ileus (absent bowel sounds, abdominal distension), which is common in acute SCI.
Patient Safety and Precautions:- Do NOT place the patient in Trendelenburg position to treat hypotension. This can increase intracranial pressure and worsen spinal cord edema.
- Vasopressor administration requires a central line and careful titration based on BP. Monitor for extravasation.
- Be vigilant for the development of other types of shock (e.g., hypovolemic from other injuries). Neurogenic shock is a diagnosis of exclusion after other causes of hypotension are ruled out.
1Verify OrderConfirm drug, dose, concentration, and infusion rate.
2AccessEnsure medication is administered via a central venous catheter to prevent severe tissue necrosis if extravasation occurs.
3PreparationUse an IV infusion pump. Label the line clearly "VASOPRESSOR".
4TitrationTitrate the drip to achieve the target blood pressure (e.g., systolic BP > 90-100 mmHg or MAP > 65). Change the rate in small increments per protocol.
5MonitoringCheck BP every 5-15 minutes during titration, then every 15-30 minutes once stable. Monitor urine output hourly (goal > 30 mL/hr). Assess peripheral perfusion and for signs of ischemia.
A Word from Your Senior Nurse
"In the chaos of a new spinal cord injury, it's easy to get focused on the dramatic paralysis. But your most critical nursing skill is seeing the whole picture. Those vital signs aren't just numbers on a screen—they're telling you the patient's nervous system has lost control of their blood vessels and heart. Recognizing neurogenic shock early and acting decisively is what keeps that patient alive long enough for the neurosurgeons to do their work. On the NCLEX and at the bedside, always remember: Airway, Breathing, Circulation. In this case, 'Circulation' is screaming for your attention with that low BP and slow heart rate. Master this differentiation, and you'll save lives."
Neurogenic Shock — A type of distributive shock caused by the loss of sympathetic nervous system tone, typically from a spinal cord injury above T6, leading to vasodilation, hypotension, and bradycardia.
Spinal Shock — A temporary state of reflex depression and flaccid paralysis below the level of a spinal cord injury, characterized by loss of motor, sensory, and autonomic function.
Autonomic Dysreflexia — A life-threatening hypertensive emergency in patients with spinal cord injury above T6, triggered by a noxious stimulus below the injury level, causing severe headache, hypertension, and bradycardia.
T6 Level — The critical spinal cord level; injuries at or above this level disrupt major sympathetic outflow, risking neurogenic shock and autonomic dysreflexia.
Vasopressor — A medication (e.g., norepinephrine) that causes vasoconstriction, used to raise blood pressure in conditions like neurogenic shock. Must be given via central line.