A nurse is caring for a patient with COVID-19 in the intensive care unit. Which nursing action is the MOST important priority when providing care for this patient?

Proper PPE use is the highest priority to prevent transmission and protect healthcare workers, as other interventions cannot be safely performed without infection control measures in place.

Understanding the Priority: Safety and Infection Control

In the NCLEX-RN framework, when a question asks for the MOST important priority, you must apply a hierarchy of needs. The physiological integrity and safety of both the patient and the healthcare team are paramount. In the context of a highly infectious disease like COVID-19, the foundational principle of infection control dictates that you cannot provide any other care if you first become a vector for transmission or become infected yourself. Before monitoring, teaching, or administering medications, the nurse must establish a safe care environment, which begins with self-protection.

Analyzing the Correct Answer: Donning PPE

The correct action is to don appropriate personal protective equipment (PPE). The causative agent, SARS-CoV-2, is transmitted primarily through respiratory droplets and aerosols, especially during aerosol-generating procedures common in intensive care units. An N95 respirator filters out at least 95% of airborne particles, providing a necessary seal against viral particles, unlike a standard surgical mask. Eye protection, a gown, and gloves create a complete barrier to prevent contact with mucous membranes and skin contamination. This is not merely a task but a critical thinking decision that aligns with the Standard Precautions and Transmission-Based Precautions for airborne and droplet pathogens. The provided research underscores this priority by highlighting the physiological stress and challenges nurses face specifically related to the use of this equipment [1,2,3]. A study on healthcare worker stress found that the type of PPE, such as N95 masks versus powered air-purifying respirators, directly impacts the wearer's physiological response, confirming that PPE is a primary, physically demanding, and critical interface between the nurse and the infectious environment ^[1]. Furthermore, qualitative data reveals that the very experience of nursing during the pandemic was profoundly shaped by the challenges and necessities of PPE use, making its correct application the non-negotiable first step in any care encounter [2,4].

Why the Other Options Are Not the Priority

- Option 2 (Monitor oxygen saturation): While monitoring oxygenation is a critical assessment for a patient with a respiratory infection like COVID-19, it is a secondary intervention. You cannot safely enter the patient's room to apply a pulse oximeter and assess the patient without first donning the correct PPE. The assessment is dependent on the prior establishment of a safe physical barrier.

- Option 3 (Encourage deep breathing and incentive spirometry): This is an important independent nursing intervention to prevent atelectasis and improve gas exchange. However, it requires prolonged close contact with the patient, during which the patient will be exhaling forcefully, generating aerosols. This action is contraindicated from a safety standpoint until the nurse has fully protected themselves with appropriate PPE. The act of donning PPE enables this intervention to be performed safely.

- Option 4 (Administer prescribed antiviral medications): Medication administration is a dependent nursing function that is vital for treatment. However, like the other options, it cannot be performed before the nurse is protected. The physical act of administering medication brings the nurse into the patient's immediate zone, making PPE the prerequisite action. The research on device-related pressure injuries among frontline nurses further illustrates the consequences of prolonged PPE use, emphasizing that the equipment is a constant, physically present reality that must be managed before and during all other patient care activities .