A nurse is caring for a client with a complete T8 spinal cord injury who is experiencing autonomic dysreflexia. The client's blood pressure is 200/110 mmHg, and they are complaining of a severe headache and profuse sweating above the level of injury. What is the priority nursing intervention?

Elevating the head of the bed reduces blood pressure, and checking for bladder distention addresses the most common trigger of autonomic dysreflexia. Other interventions may be harmful or less effective as initial steps.

Core Nursing Explanation This question tests the nurse's ability to recognize and prioritize interventions for Autonomic Dysreflexia (AD), a life-threatening medical emergency specific to patients with spinal cord injuries (SCI) at or above the T6 level. Key Concept Analysis Autonomic dysreflexia is a massive, unopposed sympathetic nervous system response triggered by a noxious stimulus below the level of spinal cord injury. The intact sympathetic nerves below the injury send signals up the spinal cord, but the injury blocks the brain's ability to send inhibitory signals back down. This results in severe vasoconstriction below the injury (causing dangerous hypertension) and reflex vasodilation above it (causing flushing, headache, sweating). The priority is not just to lower the blood pressure, but to Key Point! identify and remove the triggering stimulus. Answer Rationale The correct answer is Elevate the head of the bed and check for bladder distention. 1. Elevating the head of the bed is the first immediate action. It uses gravity to lower blood pressure by promoting venous pooling in the legs and reducing cerebral perfusion pressure, which can help prevent stroke or seizure. 2. Checking for bladder distention addresses the most common trigger (over 85% of cases). A blocked or overfull urinary catheter, bladder stones, or urinary tract infection (UTI) are frequent culprits. Removing this stimulus (e.g., irrigating or replacing a catheter) is the definitive treatment. Distractor Analysis

• Watch out for confusion! Administering antihypertensive medication (Option 1) is a secondary intervention if removing the stimulus does not resolve the hypertension. Giving medication first masks the symptom without treating the cause, and a rapid drop in BP can be dangerous.
• Placing the client in Trendelenburg position (Option 2) is absolutely contraindicated. This position would increase blood flow to the head, dramatically worsening cerebral hypertension and the risk of intracranial hemorrhage.
• Applying cold compresses (Option 3) is a comfort measure for the headache but does nothing to address the underlying, life-threatening pathophysiology. It is a non-priority distraction.

Related Concepts Other common triggers for AD include bowel distention (fecal impaction), pressure ulcers, ingrown toenails, tight clothing, or fractures. The nursing process for AD is: 1) Sit patient up, 2) Loosen clothing/restrictive devices, 3) Check bladder & bowel, 4) Monitor BP, 5) Notify provider if unresolved. Concept Summary

Concept	Key Points
Autonomic Dysreflexia (AD)	Life-threatening sympathetic overdrive in SCI above T6. S/S: Severe hypertension, pounding headache, diaphoresis above injury, bradycardia, flushing.
Priority Intervention	1. Elevate HOB (first action). 2. Identify & remove noxious stimulus (bladder/bowel most common).
Common Triggers	Bladder distention (blocked catheter), bowel distention (impaction), pressure injury, infection, tight clothing.
Contraindicated Actions	Trendelenburg position, ignoring the stimulus to treat only BP.

Side-by-Side Comparison!

Condition	Pathophysiology	Key Nursing Priority
Autonomic Dysreflexia	Unopposed sympathetic response to stimulus below SCI level. Hypertension is a symptom.	Find and remove the trigger (e.g., check bladder/bowel). Lower HOB as immediate action.
Hypertensive Crisis (non-SCI patient)	Primary cardiovascular dysfunction. Hypertension is the disease process.	Administer antihypertensives as ordered to lower BP and prevent end-organ damage.

Anatomy, Physiology & Pharmacology Points

• Anatomy: SCI at T6 or above disrupts the descending inhibitory pathways from the medulla, leaving the spinal sympathetic reflexes unchecked.
• Physiology: The stimulus causes sympathetic outflow (vasoconstriction → hypertension). Baroreceptors sense hypertension and trigger parasympathetic response via vagus nerve (causing bradycardia), but cannot inhibit sympathetic outflow below the injury.
• Pharmacology: Rapid-acting antihypertensives (e.g., nifedipine, nitrates) are used if stimulus removal fails. They are a temporary measure, not the first-line treatment.

Memory Tips

• Acronym "SIT DOWN": Sit patient up, Identify cause, Treat cause, Don't ignore, Observe BP, Watch for complications, Notify MD.
• Think "B's before BP": Check Bladder and Bowel before reaching for BP medication.

High-Frequency NCLEX Topics NCLEX loves testing priority-setting in emergencies. For AD, they want you to know that treating the cause (the stimulus) is always priority over treating the symptom (the high BP). Expect questions that list multiple correct actions and ask for the first or immediate action. Watch Out for Question Variations!

• Symptom Identification: "A client with T4 SCI has BP 210/115, headache, and nasal congestion. The nurse recognizes this as..." (Answer: Autonomic Dysreflexia).
• Trigger Identification: "After elevating the HOB, what should the nurse assess first?" (Answer: Bladder for distention/catheter patency).
• Patient Education: "What should be included in discharge teaching for a client at risk for AD?" (Answer: How to recognize symptoms, check for common triggers like full bladder or constipation, and immediate actions to take).

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on a rehabilitation unit. Mr. Jones, a 32-year-old with a T5 complete SCI from a motorcycle accident 3 months ago, calls you via call bell. He states he has a "crushing" headache and feels like his heart is pounding. You enter the room and note he is diaphoretic on his face and chest, his face is flushed, and he is anxious. Nursing Intervention Strategy

1. Immediate Assessment & Action (First 60 seconds):
   • Airway/Breathing/Circulation (ABC): Ensure patent airway. Immediately elevate the head of the bed to 90 degrees (high Fowler's).
   • Vital Signs: Obtain BP (you find it is 208/112 mmHg), heart rate (may be bradycardic, e.g., 52 bpm).
   • Reassure the Patient: "Mr. Jones, I'm here. Your symptoms are from a condition called autonomic dysreflexia. We're going to sit you up and find the cause. This is treatable."
2. Identify & Remove Stimulus (Next 2-3 minutes):
   • Bladder: Check urinary catheter for kinks, drainage bag level. If no urine output in last hour, the catheter is likely blocked. Perform a gentle, aseptic catheter irrigation with normal saline. If no catheter, palpate for a distended bladder.
   • Bowel: If bladder is not the cause, perform a gentle digital rectal exam to check for fecal impaction. Do not perform this if the bladder is the confirmed cause, as you may introduce a second stimulus. If impaction is found, apply topical anesthetic gel (e.g., lidocaine) to the anus before attempting disimpaction to minimize stimulus.
   • Skin & Other: Quickly inspect skin for pressure areas, check for tight clothing or leg straps.
3. Ongoing Monitoring & Communication:
   • Monitor BP every 2-5 minutes. Once the stimulus is removed, BP should drop rapidly.
   • Notify the physician or advanced practice provider immediately. Document the event thoroughly: time of onset, symptoms, BP readings, interventions performed, and patient response.

Patient Safety and Precautions

• NEVER leave the patient flat or in Trendelenburg.
• NEVER administer antihypertensives as the first step without attempting to identify the trigger.
• NEVER perform a vigorous bowel disimpaction without anesthetic, as it will worsen the AD.
• Educate the patient and family on AD recognition and prevention (regular bladder/bowel regimen, skin checks).

Nursing Procedure & Medication Flow Procedure: Managing a Blocked Urinary Catheter in AD 1. Gather supplies: Sterile irrigation set, sterile normal saline, waterproof pad. 2. Maintain sterile technique. Place pad under catheter connection. 3. Disconnect catheter from drainage tubing. 4. Gently instill 30-50 mL of saline into the catheter lumen via syringe. 5. Attempt to aspirate (pull back) to remove the clot or sediment. 6. Repeat until patency is restored and urine flows freely. 7. Reconnect to drainage system. Monitor output. Medication (If Stimulus Removal Fails): - A medication like nifedipine (sublingual or chewable) or nitroglycerin ointment may be ordered. - Administer while continuing to search for the trigger. - Monitor for hypotension after administration. A Word from Your Senior Nurse "Autonomic dysreflexia is one of the few true nursing emergencies where your quick, knowledgeable actions directly save a patient from a stroke or seizure. Remember, your brain in this moment should be screaming 'FIND THE TRIGGER!' not just 'LOWER THE BP!' That shift in thinking is what makes you a safe, effective nurse for this vulnerable population. On the NCLEX, they are testing your clinical judgment—can you see past the alarming vital sign to the root cause? Master this, and you'll ace these questions and be ready for the real thing."