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Difficulty: HardStandard and Transmission-Based Precautions

A triage nurse in the emergency department is evaluating four newly arrived clients in the waiting area. Which client requires the most immediate implementation of transmission-based precautions and placement in an isolation room?

  1. A
    A client complaining of a sudden onset of fever, chills, and a non-productive cough during influenza season.
  2. B
    A client with an intact, dry dressing over a sacral wound that recently cultured positive for methicillin-resistant Staphylococcus aureus (MRSA).
  3. A client presenting with a high fever, coryza, conjunctivitis, and an undiagnosed maculopapular rash.Answer
  4. D
    A client reporting a positive QuantiFERON-TB Gold test and a negative chest x-ray during an occupational health screening.

Answer

The client presenting with a high fever, coryza, conjunctivitis, and an undiagnosed maculopapular rash requires the most immediate isolation due to suspected measles (an airborne pathogen).
The correct answer describes a client with classic symptoms of rubeola (measles): high fever, the '3 Cs' (coryza, cough, conjunctivitis), and a maculopapular rash. Measles is a highly contagious airborne pathogen. Airborne particles are small (< 5 microns), remain suspended in the air for prolonged periods, and can travel through the facility's ventilation system. This client poses the greatest immediate risk to everyone in the shared waiting area and requires emergency placement in an Airborne Infection Isolation Room (AIIR).

Step-by-Step Solution

1
Evaluate the mode of transmission and isolation requirement for each client.
The rash client needs Airborne, the flu client needs Droplet, the MRSA client needs Contact, and the latent TB client needs Standard precautions.
Accurate identification of precaution tiers is the critical first step in determining triage isolation priority.
2
Assess the immediate environmental risk each client poses to the shared triage waiting area.
Airborne pathogens (measles suspect) remain suspended in the air and travel widely. Droplets (flu) fall within 3 to 6 feet. The MRSA wound is contained by a dressing, and latent TB is non-infectious.
Pathogens that spread via air currents pose the highest risk of exposing the entire facility, requiring immediate removal from shared airspaces.
3
Determine the highest priority for immediate room isolation.
The client with the suspected airborne infection must be isolated first in a negative-pressure Airborne Infection Isolation Room (AIIR).
Providing a standard mask to the flu client provides adequate temporary source control in the waiting room, whereas the airborne client requires immediate negative-pressure isolation to prevent facility-wide exposure.

Key Concept

Prioritizing transmission-based precautions in triage based on the mode of transmission, with airborne threats requiring immediate negative-pressure isolation.
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Topics

Standard and Transmission-Based Precautions

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