A nurse is caring for a patient with COVID-19 who is experie… | 마이메르시 MyMerci
Adult Health
문제

A nurse is caring for a patient with COVID-19 who is experiencing severe respiratory distress. What is the nurse's priority action?

The patient's oxygen saturation is 88% on room air, respiratory rate is 32 breaths per minute, and they are using accessory muscles to breathe. The nurse must immediately address the patient's severe respiratory compromise while maintaining appropriate infection control measures.
해설
The patient shows signs of impending respiratory failure (hypoxemia, tachypnea, accessory muscle use), requiring immediate high-flow oxygen and preparation for intubation as the priority. Other actions are important but do not address the acute hypoxemia and risk of respiratory arrest as urgently.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the nurse's ability to prioritize interventions for a patient in acute respiratory distress with suspected COVID-19. The core principle is the ABC (Airway, Breathing, Circulation) priority framework. The patient's vital signs (O2 sat 88%, RR 32) and clinical signs (use of accessory muscles) indicate Key Point! severe hypoxemia and impending respiratory failure, which is an immediate threat to life.

Answer Rationale: Key Point! Option ② is correct because it directly and urgently addresses the life-threatening problem: hypoxemia. High-flow oxygen therapy (e.g., via non-rebreather mask or high-flow nasal cannula) is the immediate intervention to improve oxygenation. Preparing for intubation is a critical next step because the patient's condition suggests they may rapidly progress to respiratory failure, requiring mechanical ventilation. This action aligns with the principle of stabilizing the patient first.

Distractor Analysis:
  • Watch out for confusion! Option ①: While bronchodilators are used for bronchospasm (e.g., in asthma, COPD), COVID-19 primarily causes viral pneumonia and acute respiratory distress syndrome (ARDS), where inflammation and fluid-filled alveoli are the main problems. A nebulizer treatment is not the first-line intervention for severe hypoxemia and poses a high risk of aerosol generation, increasing infection transmission risk to healthcare workers.
  • Option ③: Positioning and breathing exercises are supportive measures for mild to moderate dyspnea but are insufficient for a patient with severe respiratory distress and hypoxemia. This is a comfort measure, not a life-saving intervention.
  • Option ④: Obtaining an arterial blood gas (ABG) provides valuable data but is a diagnostic action, not an immediate therapeutic one. The patient's clinical status is clear enough to warrant immediate treatment. Notifying the respiratory therapist is important, but the nurse's first action is to administer oxygen.
Related Concepts: This scenario integrates emergency response, oxygen therapy principles, and infection control for airborne pathogens. When managing a patient with a contagious respiratory illness like COVID-19, the nurse must use appropriate personal protective equipment (PPE) (N95 respirator, gown, gloves, eye protection) while performing urgent interventions.

Concept Summary
ConceptDescriptionApplication in this Case
ABC PriorityAirway, Breathing, Circulation. Always address life-threatening issues first.Breathing (severe hypoxemia) is the immediate threat.
Signs of Respiratory Distress/FailureHypoxemia (low SpO2), tachypnea, use of accessory muscles, anxiety, cyanosis.SpO2 88%, RR 32, accessory muscle use.
High-Flow Oxygen TherapyDelivers high concentrations of oxygen (e.g., non-rebreather mask: up to 90-95%). First-line for severe hypoxemia.Immediate intervention to raise oxygen saturation.
Infection Control (Airborne/Contact)Use of PPE (N95, gown, gloves, eye protection) and negative pressure rooms for diseases like COVID-19.All actions must be performed with appropriate PPE to protect the healthcare team.

Side-by-Side Comparison!
ConditionPrimary ProblemPriority Nursing InterventionKey Difference
COVID-19 Pneumonia / ARDSInflammation, fluid in alveoli, impaired gas exchange.High-flow O2, prepare for intubation & mechanical ventilation.Focus on oxygenation and ventilation support.
Asthma/COPD ExacerbationBronchospasm and airway inflammation.Administer bronchodilators (e.g., albuterol) and corticosteroids.Focus on opening the airways with medication.
Pulmonary Embolism (PE)Blockage of pulmonary artery by a clot.Administer oxygen, anticipate anticoagulation (e.g., heparin).Focus on preventing clot extension while supporting oxygenation.

Anatomy, Physiology & Pharmacology Points
  • Physiology: Severe hypoxemia (SpO2 < 90%) indicates failure of the primary lung function: gas exchange. Oxygen cannot diffuse across the inflamed, fluid-filled alveolar-capillary membrane in COVID-19 pneumonia.
  • Pharmacology: In this acute setting, oxygen is considered a drug. The goal is to correct hypoxemia to maintain tissue perfusion, especially for vital organs like the brain and heart.

Memory Tips
  • ABCs First! Always ask: Is the Airway open? Is the patient Breathing? Is there Circulation? Address in that order.
  • SpO2 < 90% = Red Flag. This is a critical threshold indicating severe hypoxemia requiring immediate intervention.
  • COVID-19 Care Acronym: PPE first, Oxygen next, Prepare for the worst (intubation).

High-Frequency NCLEX Topics Prioritization ("What is the nurse's priority action?") in emergency or deteriorating patient scenarios is a core NCLEX strategy. The exam consistently tests the ability to distinguish between urgent, life-saving interventions and important but less immediate actions (like diagnostics or comfort measures).

Watch Out for Question Variations!
  • Shift in Focus: The same patient scenario could ask: "Which finding requires immediate intervention?" (Answer: Oxygen saturation of 88%).
  • Shift in Role: "The nurse is preparing to administer high-flow oxygen. Which action is most important?" (Answer: Don appropriate airborne PPE before entering the room).
  • Post-Intervention: "After initiating oxygen therapy, the nurse's next priority action is to..." (Answer: Continuously monitor oxygen saturation and respiratory status).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on a medical-surgical unit. You enter the room of Mr. Jones, a 68-year-old with confirmed COVID-19. He is sitting upright, leaning forward, breathing rapidly with visible neck muscle retractions. His monitor shows SpO2 88%. He appears anxious and says, "I can't catch my breath."

Nursing Intervention Strategy:
  1. Immediate Assessment & Action (Within seconds): Visually confirm severe distress. Do not leave the patient. Call out to colleagues for help (e.g., "I need help in room 205, stat!"). While waiting, if a non-rebreather mask is at the bedside, apply it to the patient at 15 L/min to deliver high-concentration oxygen.
  2. Infection Control: You should already be wearing appropriate PPE (N95 respirator, gown, gloves, face shield) as you entered the isolation room. If not, don it immediately before close contact.
  3. Preparation for Escalation: As help arrives, delegate tasks: one nurse gathers the intubation tray and code cart, another notifies the physician/provider and respiratory therapist, a third continues to monitor vital signs and reassure the patient.
  4. Ongoing Monitoring: Continuously assess SpO2, respiratory rate and effort, lung sounds, and level of consciousness. Document everything meticulously.
Patient Safety and Precautions:
  • Aerosol-Generating Procedures (AGPs): Nebulizer treatments, non-invasive ventilation (BiPAP/CPAP), and intubation are high-risk AGPs. They must be performed in a negative pressure room with minimal staff present, all wearing full airborne PPE.
  • Oxygen Toxicity: While the immediate goal is to correct hypoxemia, prolonged delivery of very high FiO2 (>60%) can cause lung damage. This is a secondary concern in an emergency.
  • Patient Anxiety: Severe dyspnea is terrifying. Use calm, clear communication. Explain what you are doing: "Mr. Jones, I'm putting this mask on you to help you get more oxygen. Try to breathe with me slowly."

Nursing Procedure & Medication Flow Procedure: Applying a Non-Rebreather Mask
  1. Ensure oxygen flowmeter is connected to wall outlet.
  2. Set flow rate to 15 liters per minute (LPM). You should hear the reservoir bag fully inflate.
  3. Place the mask over the patient's nose and mouth, securing the elastic band around the head.
  4. Pinch the nose bridge to ensure a snug fit and minimize air leaks.
  5. Ensure the reservoir bag does not completely deflate during inspiration (if it does, increase flow rate).
  6. Key Point: The one-way valves on the side ports must be functioning to prevent rebreathing of exhaled CO2.
Medication/Intervention Caution: In a COVID-19 scenario, avoid administering nebulized medications in an open ward unless it is a true life-saving measure for a co-condition like asthma. Use metered-dose inhalers (MDIs) with spacers instead to reduce aerosolization.

A Word from Your Senior Nurse "In the heat of the moment with a crashing patient, it's easy to panic. Remember your training: ABCs. Your brain might scream 'call the doctor!' or 'get an ABG!', but your hands need to be putting oxygen on the patient first. In real-world COVID-19 care, we learned that early, aggressive oxygen support could sometimes prevent the need for intubation. But we also learned to recognize when a patient was losing the battle to breathe on their own, and preparing for intubation early is a critical nursing judgment. On the NCLEX and in practice, prioritizing the immediate threat to life is your most important skill. See the patient, not just the numbers, but let the critical numbers (like that SpO2 of 88%) guide your immediate actions."

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