# The nurse is reviewing pressure-injury documentation. Click the cross-section that supports a stage 3 classification based on the tissue visible in the wound bed. All four illustrations represent pressure-related injuries.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=581192&lang=en  
> language: en  
> subject: Reduction of Risk Potential  
> category: ROR

## Question

The nurse is reviewing pressure-injury documentation. Click the cross-section that supports a stage 3 classification based on the tissue visible in the wound bed. All four illustrations represent pressure-related injuries.

![](https://mymerci.kr/data/nclex/hotspot/regen_20260908_2350/HSR529.svg)

## Explanation

B shows full-thickness skin loss with exposed subcutaneous fat while the muscle remains covered.

## In-depth explanation

Quick answer
B. B shows full-thickness skin loss with exposed subcutaneous fat while the muscle remains covered.
Why this is the best choice
Stage classification uses the tissue exposed in the wound bed. At B, yellow lobulated adipose is visible and a continuous fat layer still separates the base from muscle. A deep-looking crater alone does not establish stage 3; identify its visible tissue.
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 exposed tissue; do not assign a stage through an obscured wound bed.
Decision rule
Identify exposed tissue; do not assign a stage through an obscured wound bed.
Why the other regions do not fit
A shows exposed dermis without fat, consistent with stage 2. C exposes muscle, supporting stage 4. D has an obscured base and is unstageable from the visible surface; its true depth cannot be inferred through the eschar.
**Sources**
- NPIAP stage 3 exposes adipose without exposed deeper supporting structures; an obscured base is unstageable.

## Key concepts

- **Visible tissue and pressure-injury staging** — Identify exposed tissue; do not assign a stage through an obscured wound bed.
- **Comparison with context** — C is also a full-thickness crater but exposes muscle; D conceals the tissue needed for staging.

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