A nurse is caring for a 60-year-old patient with chronic hepatitis B infection. Which nursing intervention is the highest priority to prevent transmission to healthcare workers and other patients?

Standard precautions and proper handling of blood/body fluids are the priority to prevent hepatitis B transmission, as it is bloodborne. Other options are unnecessary or incorrect for this infection.

Understanding the Priority: Breaking the Chain of Infection for Hepatitis B

The core of this question lies in understanding the mode of transmission for the hepatitis B virus (HBV). HBV is a bloodborne pathogen, meaning it is primarily transmitted through percutaneous (needle stick) or mucosal exposure to infected blood and bodily fluids. The nursing students in the study by Marendić et al. are identified as being at high risk for exactly this type of occupational exposure due to their limited clinical experience . Therefore, the highest priority intervention is the one that directly interrupts this specific transmission route for all individuals in the healthcare setting.

Analysis of the Correct Answer: Standard and Blood/Body Fluid Precautions

Option 3, implementing standard precautions with a specific focus on blood and bodily fluids, is the correct and highest priority action. Standard precautions are the foundational infection control practices designed to be used for the care of all patients, regardless of their diagnosis. They are built on the principle that all blood, body fluids, secretions, excretions (except sweat), non-intact skin, and mucous membranes may contain transmissible infectious agents. For a bloodborne pathogen like HBV, strict adherence to these precautions—including proper hand hygiene, use of gloves, gowns, masks, and eye protection when splash or spray is anticipated, and safe injection practices—directly prevents the virus from moving from the source (the patient) to a susceptible host (a healthcare worker or another patient). The cross-sectional study from Jordan reinforces this by assessing nursing students' practices, highlighting that correct, consistent application of these principles is the practical defense against HBV transmission .

Why the Other Options Are Incorrect

- Option 1: Administer hepatitis B immunoglobulin (HBIG) to all staff members. This is incorrect and demonstrates a misunderstanding of prevention levels. HBIG provides passive, post-exposure prophylaxis; it is administered after a documented, high-risk exposure to provide immediate, temporary immunity. It is not a population-wide preventive measure for an entire staff. The primary prevention strategy for healthcare workers is the hepatitis B vaccine, which provides active, long-term immunity. The study by Al-Mohani et al. underscores the critical importance of nursing students having a thorough understanding of HBV, including its prevention, which starts with vaccination, not mass administration of HBIG .

- Option 2: Place the patient in airborne precautions with a negative pressure room. This is incorrect because HBV is not transmitted via the airborne route. Airborne precautions are reserved for pathogens that can be carried over long distances on small droplet nuclei (e.g., measles, tuberculosis, varicella). Placing a patient with chronic HBV in a negative pressure room is an unnecessary use of resources and does not address the actual mechanism of transmission.

- Option 4: Isolate the patient in a private room with contact precautions only. This is incorrect and insufficient. While a private room might be indicated if the patient has poor hygiene or is bleeding heavily, it is not a strict requirement for all patients with HBV. More critically, contact precautions are designed to prevent the spread of organisms through direct or indirect contact with the patient or their environment (e.g., C. difficile, MRSA). While contact precautions include glove and gown use, they do not inherently emphasize the specific, rigorous management of blood and sharp objects that is central to preventing bloodborne pathogen transmission. Relying on contact precautions alone misses the primary hazard: blood and certain body fluids. The multicenter study from the DRC highlights the constant risk of percutaneous exposure to bloodborne pathogens that healthcare workers face, a risk managed not by contact precautions but by the blood-and-body-fluid-focused elements of standard precautions .

Clinical Reasoning and Test-Taking Strategy

When approaching an infection control priority question, always first identify the pathogen's primary mode of transmission. The intervention must match this mode. For HBV, a bloodborne virus, the highest priority is strict adherence to standard precautions with meticulous attention to the handling of blood, bodily fluids, and sharps. This principle is so fundamental that knowledge of it is a key indicator of preparedness among nursing students entering clinical practice [1,3]. The patient's symptoms of abdominal pain and dark urine are clinical manifestations of hepatitis, but the nursing priority for safety is universally applied infection control, not symptom-specific isolation. The mildly elevated liver enzymes are a laboratory finding that confirms hepatic inflammation but do not change the transmission-based precautions required, as the virus is present in the blood regardless of the enzyme level.