A nurse is caring for a client with asthma who is experiencing an acute exacerbation. The client's oxygen saturation is 88% on room air, respiratory rate is 28/min, and the client is using accessory muscles for breathing. Which nursing intervention should the nurse implement first?

The priority is to correct hypoxemia with low-flow oxygen (2 L/min via nasal cannula) to maintain SpO₂ 88-92% in COPD, as severe hypoxemia poses immediate risk. Other interventions are important but secondary after oxygenation is stabilized.

Core Nursing Explanation Key Concept Analysis: This question tests the nurse's ability to prioritize interventions for a patient in acute respiratory distress due to an asthma exacerbation. The core principle is the ABC (Airway, Breathing, Circulation) framework of life support. In this scenario, the patient's SpO₂ of 88% indicates significant hypoxemia, which is the most immediate threat to life. The rapid respiratory rate (28/min) and use of accessory muscles signal severe work of breathing and potential for respiratory failure.

Answer Rationale: Key Point! The nurse's first action must be to address the life-threatening hypoxemia. Applying low-flow oxygen therapy is the correct first intervention because it directly targets the primary problem of inadequate oxygenation. In asthma and COPD (Chronic Obstructive Pulmonary Disease), the goal is to raise the SpO₂ to a safe range, typically 88-92%, to avoid suppressing the hypoxic drive to breathe (especially important in COPD, though the question specifies asthma). Correcting hypoxemia is the foundational step that supports all other interventions.

Distractor Analysis:
Watch out for confusion! While administering a bronchodilator (Option 1) is a critical and urgent intervention for an asthma attack, it is not the first action when severe hypoxemia is present. The medication needs time to work, and the patient must be oxygenated first to ensure they can tolerate and benefit from the treatment.
Positioning in high Fowler's (Option 3) and encouraging pursed-lip breathing (Option 4) are supportive measures that can improve ventilation and reduce the work of breathing. However, they do not directly correct the dangerously low oxygen level and should be implemented after or concurrently with initiating oxygen therapy.

Related Concepts: This scenario integrates priority-setting frameworks (ABCs), understanding of asthma pathophysiology (bronchoconstriction, inflammation, air trapping), and the clinical application of oxygen therapy principles. Remember, assessment and intervention for the most immediate threat to life always comes first.

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse on a medical-surgical unit. Your patient, Mr. Jones, a 55-year-old with a history of asthma, calls you to the room stating he "can't catch his breath." You find him leaning forward, using his neck and shoulder muscles to breathe. His lips appear slightly dusky.

Nursing Intervention Strategy: 1. Immediate Assessment & Action: While calling for help, apply a nasal cannula at 2 L/min and place the patient on a pulse oximeter and cardiac monitor. Your primary goal is to correct the SpO₂. 2. Simultaneous Interventions: While oxygen is flowing, quickly position the patient in high Fowler's to maximize lung expansion. Prepare the nebulizer with the prescribed bronchodilator (e.g., albuterol). Encourage slow, pursed-lip breathing to help keep airways open longer during exhalation. 3. Ongoing Monitoring & Evaluation: Continuously monitor SpO₂, respiratory rate and effort, breath sounds, and heart rate. Assess for improvement or signs of deterioration (e.g., decreasing level of consciousness, fatigue). Document everything meticulously.

Patient Safety and Precautions: In asthma, high-flow oxygen is generally safe. However, always be aware of the patient's history. If there is a co-diagnosis of COPD, titrate oxygen carefully to the target SpO₂ of 88-92% to avoid oxygen-induced hypercapnia (retention of CO₂). Never withhold oxygen from a hypoxemic patient due to fear of hypercapnia; instead, monitor closely.
Nursing Procedure & Medication Flow Oxygen Administration via Nasal Cannula: 1. Explain the procedure to the patient. 2. Set the flowmeter to the prescribed rate (e.g., 2 L/min). 3. Place the prongs in the patient's nostrils, loop the tubing over the ears, and adjust the slider under the chin. 4. Ensure the oxygen is humidified if flow is >4 L/min for comfort. 5. Place "Oxygen in Use" signs and enforce fire safety precautions.
Nebulizer Medication Administration: 1. Assemble the nebulizer cup and connect it to the air/oxygen source. 2. Pour the prescribed medication (e.g., albuterol 2.5 mg) into the cup. 3. Connect the mouthpiece or mask. 4. Turn on the compressor. Instruct the patient to take slow, deep breaths through the mouthpiece. 5. Treatment typically lasts 5-15 minutes until the medication is fully aerosolized.

A Word from Your Senior Nurse "In the rush of an emergency, your training kicks in. Remember your ABCs like a mantra. Seeing a patient struggle to breathe is scary—for them and for you. Your calm, decisive action to give oxygen first provides immediate relief and buys time for other treatments to work. In clinicals and on the NCLEX, always ask yourself: 'What will kill the patient first?' That's your priority. This mindset saves lives."