A nurse is caring for a 65-year-old client with a history of stroke who is now unconscious following a fall. Which assessment finding should receive the nurse's immediate attention?
1Irregular respiratory pattern with periods of apnea✓ 정답
2Blood pressure of 160/90 mmHg
3Temperature of 101.2°F (38.4°C)
4Urine output of 30 mL/hour
해설
Irregular respiratory patterns with apnea indicate brainstem involvement and require immediate attention to prevent respiratory arrest. Other findings like hypertension, fever, or decreased urine output are concerning but less immediately life-threatening.
Core Nursing ExplanationKey Concept Analysis: This question tests the nurse's ability to prioritize assessments in an unconscious patient with a history of stroke and a recent fall. The core principle is Airway, Breathing, Circulation (ABC) and recognizing signs of increased intracranial pressure (ICP). An irregular respiratory pattern, especially with apnea, is a late and critical sign of brainstem herniation, which is a medical emergency.
Answer Rationale: Key Point! An irregular respiratory pattern with periods of apnea (Cheyne-Stokes or ataxic breathing) is a classic Cushing's triad component (bradycardia, hypertension, irregular respirations). It indicates direct compression or ischemia of the brainstem, which controls vital respiratory centers. This finding suggests imminent risk of respiratory arrest and requires immediate intervention to secure the airway and manage ICP.
Distractor Analysis:
Watch out for confusion! While a Blood Pressure of 160/90 mmHg is elevated and can be part of Cushing's triad, it is not the most immediate threat. The body may be raising BP to perfuse the brain. The irregular breathing indicates the body's compensatory mechanisms are failing.
A Temperature of 101.2°F (38.4°C) indicates a fever, which can increase cerebral metabolic demand and worsen ICP. It requires intervention but is not an immediate life-threat like compromised breathing.
A Urine Output of 30 mL/hour is below the normal minimum of 0.5 mL/kg/hour and indicates decreased kidney perfusion or potential syndrome of inappropriate antidiuretic hormone (SIADH), a complication of brain injury. However, managing airway and breathing always takes precedence over urinary output.
Related Concepts: This scenario integrates neuro assessment after a fall (possible new intracranial bleed), stroke sequelae, and the principles of triage. The nurse must always assess the unconscious patient using the Glasgow Coma Scale (GCS) and monitor for signs of increasing ICP.
Concept Summary
Concept
Explanation & Implication
Cushing's Triad
Late sign of increased ICP: Hypertension, Bradycardia, Irregular Respirations. Indicates brainstem compression.
ABC Priority
Airway, Breathing, Circulation. An unstable airway or breathing pattern is always the top priority.
Increased Intracranial Pressure (ICP)
Pressure inside the skull. Early signs: headache, vomiting, decreased LOC. Late signs: Cushing's triad, posturing.
Neuro Assessment after Fall/Head Injury
Assess LOC (GCS), pupil size/reactivity, motor function, vital signs (especially respiratory pattern).
Side-by-Side Comparison!
Assessment Finding
Potential Cause
Priority Level
Rationale
Irregular Respirations/Apnea
Brainstem herniation, Respiratory center failure
Key Point!HIGHEST (Immediate)
Direct threat to life within minutes (respiratory arrest).
Hypertension (160/90 mmHg)
Pain, Anxiety, Cushing's response, Chronic HTN
High (Requires monitoring/intervention)
Can worsen bleed/edema, but is often a compensatory mechanism.
Fever (101.2°F / 38.4°C)
Infection, Central fever (hypothalamic injury)
Moderate-High
Increases cerebral metabolism and ICP; requires treatment but is not instantly fatal.
Decreased Urine Output (30 mL/hr)
Dehydration, SIADH, Decreased cardiac output
Moderate
Indicates systemic issue; addressed after ABCs are stable.
Anatomy, Physiology & Pharmacology Points
Brainstem: Located at the base of the brain, it houses the medulla oblongata, which controls automatic functions like breathing rhythm and heart rate. Compression here is catastrophic.
Pathophysiology: A fall in a stroke patient could cause a new intracranial hemorrhage (e.g., subdural hematoma). The bleeding increases pressure inside the rigid skull, eventually forcing brain tissue downward (herniation), compressing the brainstem.
Pharmacology Connection: Immediate interventions for increased ICP may include hyperventilation (to reduce CO2 and vasoconstrict cerebral vessels temporarily) and administration of osmotic diuretics like Mannitol.
Memory Tips
ABCs First, Always! "Airway, Breathing, Circulation" is the golden rule for prioritization. If breathing is irregular or absent, nothing else matters until it's addressed.
Cushing's Triad Mnemonic: "High BP, Bradycardia, Bad Breathing" (HBB). Bad breathing is the most ominous sign.
Think: "No air, no life." An irregular respiratory pattern means the brain's air supply control center is failing.
High-Frequency NCLEX Topics
The NCLEX-RN loves questions that test prioritization and delegation. Unstable vs. stable patients, "immediate action" vs. "further assessment," and applying the ABC framework are core testing strategies. Recognizing late signs of increased ICP is a classic neuro nursing question.
Watch Out for Question Variations!
Symptom Identification → Intervention: "The nurse notes Cheyne-Stokes respirations in an unconscious patient. What is the nurse's priority action?" (Answer: Ensure a patent airway and prepare for intubation/mechanical ventilation).
Change in Scenario: The patient is conscious but confused. The priority might then shift to the neurological change itself or preventing injury.
Lab Value Integration: The question could include arterial blood gas (ABG) results showing respiratory acidosis, further confirming the severity of the breathing pattern.
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a medical-surgical unit. Mr. Johnson, a 65-year-old with a history of ischemic stroke, was found on the floor by his bed. He is unresponsive to verbal stimuli and only withdraws from painful stimuli (GCS ~8). You are performing your initial rapid assessment.
Nursing Intervention Strategy:
Immediate Action (Seconds): Shout for help. Open the airway using the jaw-thrust maneuver (suspect cervical spine injury from the fall). Look, listen, and feel for breathing. Finding: You note his breathing is irregular, with 10-second pauses (apnea).
Activation & Stabilization: Call a rapid response or code blue. Begin bag-valve-mask (BVM) ventilation with 100% oxygen to support his respirations while awaiting the intubation team. Apply pulse oximetry and cardiac monitoring.
Simultaneous Assessment: While managing the airway, a colleague can check his blood pressure (160/90), heart rate (55 bpm), and pupils (one dilated and sluggish). This completes the picture of Cushing's triad and uncal herniation.
Collaboration & Preparation: Notify the physician/neurosurgeon immediately. Prepare for stat transport to ICU. Anticipate orders for a STAT head CT, ICP monitoring, and medications like mannitol.
Patient Safety and Precautions:
C-Spine Precautions: Assume a cervical spine injury after a fall until proven otherwise. Use the jaw-thrust, not head-tilt-chin-lift, to open the airway.
Avoid Stimuli: Keep the head of the bed elevated 30 degrees if possible (after spine clearance) to promote venous drainage from the brain. Minimize noise, cluster care, and avoid actions that increase ICP (e.g., vigorous suctioning, flexion of the neck).
Monitoring: Continuous monitoring of respiratory rate and pattern, oxygen saturation, and neurological status (GCS, pupils) is critical.
Nursing Procedure & Medication FlowProcedure: Managing a Patient with Suspected Increased ICP
1. Assessment: Rapid ABCDE (Airway, Breathing, Circulation, Disability (Neuro), Exposure/Environment) assessment.
2. Intervention: Secure airway (intubation), maintain oxygenation (SpO2 >95%), and ventilation (PaCO2 35-40 mmHg).
3. Positioning: Head of bed elevated 30°, head in midline position.
4. Medication Administration:
- Mannitol: An osmotic diuretic. Given IV via large-bore catheter. Monitor for electrolyte imbalances (Na, K), fluid balance (strict I&O), and watch for rebound increased ICP.
- Hypertonic Saline (3%): Alternative to mannitol. Requires central line administration. Monitor serum sodium closely.
5. Evaluation: Reassess neurological status, vital signs, and respiratory pattern frequently to evaluate intervention effectiveness.
A Word from Your Senior Nurse
"In the chaos of finding an unconscious patient, your training kicks in. Your brain should immediately go to ABC. That irregular breathing pattern is your patient's body sending a final distress signal—the brainstem is screaming for help. Never talk yourself out of acting on that finding because the blood pressure 'isn't that high' or you need to finish another task. In neuro, changes in pattern (of breathing, of heart rate) are often more telling than the number itself. On the NCLEX and at the bedside, protecting the airway and ensuring effective breathing is always your first and most sacred duty."
Cushing's Triad — A late sign of increased intracranial pressure characterized by hypertension, bradycardia, and irregular respirations. Indicates brainstem compression.
Increased Intracranial Pressure — Elevated pressure within the skull. Can be caused by hemorrhage, tumor, or edema. Leads to decreased cerebral perfusion and potential brain herniation.
Glasgow Coma Scale — A standardized tool for assessing level of consciousness based on eye opening, verbal response, and motor response. Scores range from 3 (deep coma) to 15 (fully alert).
Brainstem Herniation — A life-threatening condition where increased intracranial pressure forces brain tissue downward, compressing the brainstem and disrupting vital functions like breathing and heart rate.
Cheyne-Stokes Respirations — A cyclical breathing pattern with periods of apnea followed by progressively deeper, then shallower breathing. Often associated with heart failure or brain injury.