Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

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Prepare for the Wound, Ostomy and Continence Nurses Society Exam. Utilize flashcards and multiple choice questions with detailed explanations to enhance your readiness for the exam day!

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How is a patch defined?

Raised spot of color change greater than 0.5cm in diameter
Flat spot of color change greater than 0.5cm in diameter
Flat spot of color change less than 0.5cm in diameter
Loose, stringy, nonviable tissue

The correct answer is: Flat spot of color change greater than 0.5cm in diameter

A patch is defined as a flat spot of color change greater than 0.5cm in diameter. This definition is crucial in dermatology and wound care as it helps healthcare professionals accurately describe and assess skin lesions or discolorations. The characteristic of being "flat" and larger than 0.5 cm distinguishes a patch from other skin findings. For instance, the term "macule" is often used to describe flat color changes that are less than 0.5 cm in diameter, providing a clear distinction based on size and morphological characteristics. Recognizing these differences is essential in clinical settings, particularly for diagnosis, treatment planning, and monitoring changes over time. In contrast, the other options either describe different characteristics of skin lesions or do not align with the correct definition of a patch. Understanding this definition is important for accurate clinical communication and documentation.