A nurse is caring for a client with a complete T6 spinal cord injury who was admitted 2 days ago. The client suddenly develops severe hypertension (BP 200/110 mmHg), bradycardia (HR 48 bpm), and reports a severe pounding headache. The client appears flushed above the level of injury and pale below. What is the nurse's immediate priority action?
2Place the client in Trendelenburg position to improve circulation
3Elevate the head of the bed and check for bladder distension or bowel impaction✓ 정답
4Apply oxygen via nasal cannula and prepare for emergency intubation
해설
The client shows signs of autonomic dysreflexia (hypertension, bradycardia, headache). Immediate priority is to elevate the head of bed to lower BP and check for triggers like bladder distension or bowel impaction. Other options are incorrect as they do not address the root cause or may worsen the condition.
Core Nursing ExplanationKey Concept Analysis: This question tests the recognition and immediate management of Autonomic Dysreflexia (AD), a life-threatening emergency in patients with a spinal cord injury (SCI) at T6 or above. AD is an exaggerated, unopposed sympathetic nervous system response to a noxious stimulus below the level of injury. The stimulus (e.g., a full bladder) sends signals up the spinal cord, triggering massive vasoconstriction below the injury, causing severe hypertension. The body attempts to compensate via the parasympathetic system (vagus nerve), but this signal can only travel above the injury, leading to bradycardia and symptoms like headache and flushing above the level of injury.
Answer Rationale: The immediate priority is a two-step action: Key Point! First, elevate the head of the bed (or sit the patient upright) to induce orthostatic hypotension and quickly lower the dangerously high blood pressure, reducing the risk of stroke or seizure. Second, you must identify and remove the triggering stimulus. The most common triggers are bladder distension (from a blocked urinary catheter) and bowel impaction (fecal mass). Checking for these is the definitive nursing action to resolve the crisis.
Distractor Analysis:
Watch out for confusion! Option ① (Administer antihypertensive) is incorrect because while hypertension is severe, the first action is positional management. Rapid-acting antihypertensives may be used if positioning doesn't work, but the nurse must first attempt to identify and remove the cause. Giving medication without addressing the trigger (like a blocked catheter) is not the priority.
Option ② (Trendelenburg position) is dangerous and contraindicated. Placing the patient head-down would increase intracranial pressure and worsen the already severe hypertension and pounding headache.
Option ④ (Apply oxygen/prepare for intubation) is incorrect. While monitoring oxygenation is always important, the primary problem is not respiratory failure. The bradycardia is a compensatory reflex, not primarily a cardiac issue. Intubation is not the immediate priority for managing AD.
Related Concepts: Autonomic Dysreflexia is a high-priority nursing emergency. Management follows the sequence: 1) Sit patient up, 2) Loosen tight clothing/constrictive devices, 3) Check for and relieve bladder/bowel distension, 4) Monitor BP every 2-5 minutes, 5) If unresolved, administer rapid-acting antihypertensives (e.g., nitroglycerin paste) as ordered. Prevention through meticulous bladder and bowel care is paramount for patients with high-level SCI.
Concept Summary
Concept
Key Points
Autonomic Dysreflexia (AD)
Life-threatening sympathetic overreaction in SCI at T6 or above. Triggered by noxious stimuli below injury level.
Classic Triad
Severe Hypertension, Bradycardia, Pounding Headache. Flushing above injury, pallor below.
SCI (often cervical/upper thoracic). Loss of sympathetic tone: Hypotension, Bradycardia, Warm/dry skin (vasodilation).
Fluid resuscitation, vasopressors, atropine for bradycardia.
Anatomy, Physiology & Pharmacology Points
Pathophysiology: Injury above T6 severs the connection between the brain's vasomotor center and the sympathetic chain. A stimulus (e.g., full bladder) triggers a massive sympathetic reflex (vasoconstriction) below the injury. The baroreceptors sense hypertension and trigger a parasympathetic (vagal) response, but it only affects areas above the injury (causing bradycardia, nasal stuffiness).
Pharmacology: If immediate actions fail, rapid-acting antihypertensives like topical nitroglycerin paste or sublingual nifedipine may be used. These are short-acting to avoid hypotension once the trigger is removed.
Think "T6 and Above = Danger Zone" for Autonomic Dysreflexia.
Common Triggers: Remember the "B"s: Bladder, Bowel, Boils (skin breakdown).
High-Frequency NCLEX Topics
Autonomic Dysreflexia is a classic NCLEX-RN priority question. You will be tested on:
1. Recognizing the signs and symptoms (the triad + level of injury).
2. Knowing the immediate nursing action (sit up, check bladder/bowel).
3. Identifying contraindicated actions (Trendelenburg).
4. Understanding patient education for prevention (consistent bladder/bowel program, skin checks).
Watch Out for Question Variations!
Symptom Recognition: "A client with a T4 spinal cord injury reports a sudden severe headache and nausea. What should the nurse assess first?" (Answer: Check blood pressure and for bladder distension).
Priority Intervention: "The nurse finds a client with AD. After sitting the client up, which action is next?" (Answer: Check the urinary catheter for kinks/blockage).
Patient Education: "What is the most important instruction for a client at risk for AD to prevent an episode?" (Answer: Maintain a strict intermittent catheterization or bowel program schedule).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a neuro-rehabilitation unit. Mr. Johnson, a 28-year-old with a T5 complete SCI from a motorcycle accident 3 months ago, calls you to his room. He is diaphoretic, his face is flushed, and he reports a "crushing" headache. His vital signs show BP 210/115 mmHg and HR 52 bpm. His legs are cool and pale.
Nursing Intervention Strategy:
Immediate Action (Within seconds): Verbally reassure the patient while elevating the head of the bed to 90 degrees (high Fowler's). Do not leave the patient.
Rapid Assessment (Simultaneously):
Ask: "When was your last catheterization?" "Do you feel the need to have a bowel movement?"
Visually inspect the urinary catheter tubing for kinks. Gently palpate the bladder for distension.
Quickly loosen any tight clothing, abdominal binder, or leg straps.
Definitive Treatment: If the indwelling catheter is blocked, irrigate it gently with sterile normal saline per protocol to re-establish flow. If the patient is on intermittent catheterization, catheterize him immediately. If bladder is not distended, perform a digital rectal check for fecal impaction (using lidocaine jelly as a precaution).
Monitoring & Communication: Re-check BP every 2-5 minutes. The BP should drop rapidly once the trigger is removed. Stay with the patient and have another staff member notify the provider. Document the event, interventions, and patient response meticulously.
Patient Safety and Precautions:
NEVER leave the patient alone during an AD episode.
NEVER place the patient in Trendelenburg or a flat position.
If performing a rectal check/disimpaction, use anesthetic jelly to avoid providing another noxious stimulus.
After the episode, conduct thorough patient and family education on prevention, focusing on strict adherence to the bladder and bowel regimen.
Nursing Procedure & Medication FlowProcedure: Managing a Blocked Catheter in AD
1. Explain steps to the patient quickly.
2. Don sterile gloves.
3. Clamp catheter tubing below the aspiration port.
4. Cleanse port with alcohol swab.
5. Attach a sterile syringe (10-30 mL) filled with sterile normal saline.
6. Gently instill saline. If resistance is met, do not force it.
7. Attempt gentle aspiration. If unable to irrigate, the catheter may need replacement.
8. Once flow is re-established, monitor for immediate decrease in BP and resolution of symptoms.
Medication (if ordered): If BP remains elevated after trigger removal, you may apply nitroglycerin paste 1 inch to a hairless area above the level of injury. Monitor for profound hypotension. Have atropine at bedside in case of severe bradycardia.
A Word from Your Senior Nurse
Autonomic Dysreflexia is one of those "don't you dare forget" emergencies in nursing. When you see that combination of high injury level, severe hypertension, bradycardia, and headache, your brain should scream "AD!" Your hands should be moving to sit the patient up before you've even finished your assessment. In clinical practice, patients with high SCIs and their families must be empowered to recognize these signs themselves and know the first steps. As a nurse, your calm, swift, and correct response can prevent a stroke or death. On the NCLEX, they love to test if you know the sequence and the why behind it. Remember: Sit up first (safety), then find the "B" (the cause). You've got this!