Certification in Infection Prevention and Control (CIC) Practice Exam

An elevated solid lesion that measures more than 0.5 cm is classified as a nodule. Nodules are typically defined as larger than 0.5 cm and can be felt beneath the skin, often having a clearly defined border. They can be located in the dermis or subcutaneous tissue, and they may vary in firmness, temperature, and other characteristics depending on their nature.

For context, macules are flat lesions that do not have elevation and are typically less than 1 cm in size. Papules are also elevated but are usually smaller than 0.5 cm. Vesicles are fluid-filled blisters that are generally smaller than 1 cm and also possess a different structure compared to nodules.

Understanding these definitions helps in accurately classifying skin lesions based on their size and texture, which is essential for diagnosing various conditions and determining appropriate treatment strategies.