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 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.

Clinical Reasoning and Priority Setting

The patient is exhibiting signs of acute hypoxemic respiratory failure secondary to COVID-19 pneumonia. The clinical data—an oxygen saturation of 88% on room air, tachypnea at 32 breaths/min, and the use of accessory muscles—indicate severe respiratory distress and imminent decompensation. In the NCLEX-RN framework, this scenario requires immediate application of the ABCs (Airway, Breathing, Circulation) and the nursing process, where the priority is to correct life-threatening physiological instability.

Analysis of the Correct Answer (Option 2)
The priority action is to apply high-flow oxygen therapy and prepare for possible intubation. The patient’s critically low oxygen saturation reflects a failure of pulmonary gas exchange, which is the hallmark of severe COVID-19. High-flow oxygen delivery directly addresses the life-threatening hypoxemia by increasing the fraction of inspired oxygen (FiO2) and providing a degree of positive end-expiratory pressure (PEEP), which can help recruit collapsed alveoli and reduce the work of breathing. While the provided European Consensus Guidelines focus on neonatal respiratory distress syndrome, the core physiological principle of stabilizing oxygenation and supporting ventilation as the first-line response to respiratory failure is universal across patient populations. In the context of COVID-19, where rapid deterioration is common, the nurse must anticipate the need for escalation. Preparing for intubation involves gathering necessary equipment, ensuring suction and a functioning bag-valve-mask are at the bedside, and collaborating with the rapid response or critical care team. This proactive stance aligns with the concept of preventing "failure to rescue," a leading cause of preventable mortality when physiological deterioration is not acted upon decisively ^[2].

Why Other Options Are Lower Priority

- Option 1: Administer prescribed bronchodilators via nebulizer. While bronchodilators may be part of the treatment plan, their administration via nebulizer is problematic in COVID-19. Nebulization is an aerosol-generating procedure that significantly increases the risk of viral transmission to healthcare workers. Furthermore, the primary pathophysiological problem in severe COVID-19 is not bronchoconstriction but viral pneumonia causing alveolar damage and shunt physiology. Bronchodilators will not immediately correct profound hypoxemia and are not the first-line intervention for a patient in this degree of distress. The immediate threat to life is hypoxemia, not bronchospasm, making this a secondary action that requires careful infection control consideration.

- Option 3: Position the patient in high Fowler's position and encourage deep breathing exercises. High Fowler's position is a beneficial, non-invasive intervention to optimize lung expansion and ventilation-perfusion matching. However, for a patient with an SpO2 of 88% and using accessory muscles, this intervention alone is insufficient to reverse critical hypoxemia. Deep breathing exercises are inappropriate for a patient in severe respiratory distress, as they are physically exhausting and can worsen the oxygen consumption/demand imbalance. This option represents a supportive measure that can be implemented concurrently but is not the priority action to rescue a rapidly deteriorating patient.

- Option 4: Obtain arterial blood gas samples and notify the respiratory therapist. Obtaining an arterial blood gas (ABG) is an important diagnostic step to quantify the severity of hypoxemia and acid-base disturbance. However, it is a time-consuming procedure that delays the delivery of life-sustaining oxygen therapy. In the NCLEX prioritization framework, an assessment (ABG) should not delay an intervention (oxygen delivery) when a clear, critical physiological need is already identified by non-invasive monitoring. The nurse can delegate or perform the ABG after initiating emergency oxygen therapy, not before. The immediate priority is to treat the patient, not just to gather more data about them.

Integration of Infection Control and Clinical Judgment
The nurse must simultaneously maintain appropriate infection control measures, which includes the use of airborne and contact precautions. The decision to apply high-flow oxygen, rather than a nebulizer, reflects a clinical judgment that balances the patient’s urgent physiological need with the safety of the healthcare team by avoiding an aerosol-generating procedure. This integrated thinking is crucial for safe and effective nursing practice during a pandemic. The ability to recognize the trajectory of physiological decline and intervene before a catastrophic event, such as a cardiac arrest, is a core competency highlighted in research on rapid response systems ^[2].