# A nurse is assessing a 45-year-old client with a 3-year history of rheumatoid arthritis. Which assessment finding would be most characteristic of this autoimmune condition?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=541066  
> language: ko  
> subject: Adult Health

## 문제

A nurse is assessing a 45-year-old client with a 3-year history of rheumatoid arthritis. Which assessment finding would be most characteristic of this autoimmune condition?

## 보기

1. Asymmetrical joint involvement with bony enlargement
2. Bilateral symmetrical joint swelling with morning stiffness lasting over 1 hour **✔ 정답**
3. Joint pain that worsens with activity and improves with rest
4. Localized joint inflammation affecting only weight-bearing joints

**정답: 2**

## 해설

Rheumatoid arthritis is characterized by bilateral symmetrical joint swelling and morning stiffness lasting over 1 hour, distinguishing it from other arthritic conditions. Other options describe features of osteoarthritis or localized inflammation.

## 심화 해설

Clinical Judgment
This question evaluates your ability to identify the most characteristic clinical presentation of Rheumatoid Arthritis (RA). The key points are bilateral symmetry and involvement of small joints. RA is a systemic autoimmune disease where the immune system attacks the synovial membrane of its own joints, causing chronic inflammation. This inflammatory process tends to affect the same joints on both sides of the body (e.g., the metacarpophalangeal joints and wrists of both hands) simultaneously, resulting in symmetrical symptoms. Additionally, morning stiffness lasting more than 1 hour is a crucial clue that distinguishes RA from degenerative arthritis (osteoarthritis).

Memory Tip:
**R**heumatoid **A**rthritis = **R**eally **A**lways Symmetrical. Or **S**mall, **S**ymmetric, **S**tiffness > 1 hour.

KR vs US
While the basic diagnostic criteria and treatment principles for RA are the same in Korea, the NCLEX heavily emphasizes 'bilateral symmetry' and the 'duration of morning stiffness' as key assessment points to differentiate it from other types of arthritis. Korean nurses may be more familiar with the overall concept of 'chronic inflammatory arthritis' rather than 'symmetry,' so be sure to clearly remember these two specific characteristics.

## 임상 시나리오

Clinical Practice Guide: Differentiating Inflammatory vs. Mechanical Joint Pain

When assessing a patient with joint complaints, distinguishing rheumatoid arthritis (RA) from osteoarthritis (OA) is critical for timely treatment. Use this guide to focus your clinical assessment and patient education.

Key Assessment Findings

- **Symptom Pattern:** In RA, expect **bilateral, symmetrical joint swelling** affecting small joints (MCP, PIP). OA typically presents as asymmetrical with bony enlargement (Heberden's/Bouchard's nodes).

- **Morning Stiffness Duration:** Quantify exactly. Stiffness lasting **longer than 1 hour** is highly suggestive of active RA synovitis. Stiffness under 30 minutes points toward OA or mechanical pain.

- **Pain Triggers:** RA pain improves with activity (gelling phenomenon) and worsens with rest. OA pain worsens with weight-bearing activity and improves with rest.

Nursing Actions & Patient Education

- **Functional Assessment:** Ask the patient to describe their morning routine. Can they button clothes, grip a toothbrush, or make coffee within the first hour of waking? Document the impact on activities of daily living (ADLs).

- **Teach the "Stiffness Clock":** Instruct patients to note the time they wake up and the time stiffness resolves. This objective data helps rheumatologists monitor disease activity and treatment response.

- **Energy Conservation:** Advise scheduling demanding tasks for late morning or afternoon when stiffness has subsided. Recommend warm showers or paraffin baths upon waking to ease symptoms.

- **Systemic Monitoring:** Remember RA is systemic. Assess for extra-articular manifestations: fatigue, low-grade fever, rheumatoid nodules, and potential organ involvement (lungs, heart).

Clinical Pearl

If a patient reports "my joints hurt all night and feel locked up for hours in the morning," prioritize inflammatory markers (ESR, CRP) and anti-CCP antibody testing over plain X-rays, as erosive changes appear late.

## 핵심 개념

- **Synovitis** — Inflammation of the synovial membrane lining joints, the primary pathological process in rheumatoid arthritis.
- **Morning Stiffness** — Prolonged joint stiffness lasting over 1 hour after waking, correlating with active synovial inflammation in RA.
- **Symmetrical Polyarthritis** — Involvement of the same joints on both sides of the body, a hallmark diagnostic feature of rheumatoid arthritis.
- **Autoimmune Disorder** — A condition where the immune system mistakenly attacks the body's own tissues, such as the synovium in RA.
- **Osteoarthritis** — A degenerative joint disease characterized by asymmetrical involvement, bony enlargement, and pain with activity.

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