Certified Hand Therapist (CHT) Practice Exam

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What characterizes a Grade 0 scar?

Thick, widened scar with no joint limitation
Soft, pliable, non-painful flat scar
Hypertrophic and inflexible scar
Fibrous enlargement of a nerve

The correct answer is: Soft, pliable, non-painful flat scar

A Grade 0 scar is characterized as a soft, pliable, non-painful flat scar. This classification indicates that the scar has not developed any significant abnormalities such as swelling or excessive thickness. Scar tissue that is soft and pliable suggests healthy healing, allowing for normal movement and function of the affected area. In the context of wound healing and scar development, the presence of non-painful characteristics further indicates that the scar is not causing any issues related to sensation or discomfort. Such features are desirable as they signify an optimal healing process. In contrast, the other options describe various types of scars or tissue responses that indicate complications or deviations from normal healing. A thick, widened scar suggests a more pronounced healing response, potentially impacting function. Hypertrophic scars are associated with excessive collagen production, leading to inflexible tissue that may restrict movement. A fibrous enlargement of a nerve points towards a nerve injury response rather than a standard scar evaluation. These characteristics highlight how they deviate from the healthy appearance and behavior of a Grade 0 scar.