# The patient developed _____, characterized by red, scaly patches and silver-white scales typically on elbows and knees.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168466  
> language: ko  
> subject: Diseases of the skin and subcutaneous tissue

## 문제

The patient developed _____, characterized by red, scaly patches and silver-white scales typically on elbows and knees.

## 보기

1. psoriasis **✔ 정답**
2. dermatitis
3. eczema
4. rosacea
5. acne

**정답: 1**

## 해설

Psoriasis is a chronic autoimmune condition that causes rapid build-up of skin cells. This creates thick red patches covered with silvery scales. The condition occurs when the immune system triggers increased skin cell production. It commonly affects the elbows, knees, and scalp. While not curable, various treatments can help manage symptoms and reduce inflammation.

## 임상 시나리오

• Psoriasis Characteristics:
- Autoimmune skin condition
- Rapid skin cell turnover
- Plaque formation
- Silver-white scales
- Well-defined borders

• Common Locations:
- Elbows
- Knees
- Scalp
- Lower back
- Nails

• Triggers:
- Stress
- Infections
- Cold weather
- Skin injury
- Medications

• Treatment Options:
- Topical corticosteroids
- Vitamin D analogs
- Phototherapy
- Systemic medications
- Biologics

• Associated Conditions:
- Psoriatic arthritis
- Cardiovascular disease
- Depression
- Metabolic syndrome
- Eye inflammation

## 핵심 개념

- **psoriasis** — A chronic autoimmune skin condition characterized by red, scaly patches with silvery scales, caused by rapid skin cell growth and typically affecting elbows, knees, and scalp
- **dermatitis** — An inflammation of the skin characterized by itching, redness, and rash, which can be caused by contact with irritants or allergic reactions
- **eczema** — A chronic skin condition causing dry, itchy, and inflamed skin, often appearing in patches and commonly associated with allergies or asthma
- **rosacea** — A chronic inflammatory skin condition primarily affecting the face, causing redness, visible blood vessels, and sometimes small, red bumps
- **acne** — A skin condition characterized by pimples, blackheads, and other blemishes caused by clogged hair follicles and oil glands, typically occurring on the face, chest, and back

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