# The charge nurse reviews the airflow checks and room assignments shown. Each client is in a single room with the indicated precautions. Click the room whose airflow is inconsistent with its required protective function and needs immediate correction.

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> url: https://mymerci.kr/pages/nclex_q.php?qn_id=581173&lang=en  
> language: en  
> subject: Safety and Infection Prevention and Control  
> category: SIPC

## Question

The charge nurse reviews the airflow checks and room assignments shown. Each client is in a single room with the indicated precautions. Click the room whose airflow is inconsistent with its required protective function and needs immediate correction.

![](https://mymerci.kr/data/nclex/hotspot/regen_20260908_2350/HSR510.svg)

## Explanation

C allows air to leave the measles isolation room toward the corridor.

## In-depth explanation

Quick answer
C. C allows air to leave the measles isolation room toward the corridor.
Why this is the best choice
Airborne infection isolation contains pathogens by drawing corridor air into the room. A protective environment instead uses outward airflow to protect a highly immunocompromised occupant. The same arrow direction therefore has different implications for different assignments.
Clinical picture
The observations are fictional teaching data. Apply the stated context; the selected feature does not by itself replace a complete bedside assessment.
Memory hook
Identify whether airflow must protect the occupant or contain the occupant’s airborne pathogens.
Decision rule
Identify whether airflow must protect the occupant or contain the occupant’s airborne pathogens.
Why the other regions do not fit
A draws air into the tuberculosis room. B sends air out from the protective environment, which is the intended direction. D draws air into the varicella isolation room. C has the outward direction in an airborne isolation room.
**Sources**
- Airborne isolation uses negative pressure; protective environments use positive pressure.

## Key concepts

- **Opposite airflow goals for airborne and protective isolation** — Identify whether airflow must protect the occupant or contain the occupant’s airborne pathogens.
- **Comparison with context** — B also has outward airflow, but its protective-environment indication makes that direction appropriate.

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