Question

3.5. which sentence best describes visible differences in lesions that can be used to classify the lesic primary or a secondary lesion?a. primary lesions are a different color than the surrounding skin, whereas secondary lesions ha accumulation of material on the skin surface.b. primary lesions are typically red or pink in color, whereas secondary lesions typically appear in color.c. primary lesions are closed wounds, whereas secondary lesions discharge watery fluid or pusd. primary lesions are flat compared to the surrounding skin, whereas secondary lesions protr surface of the surrounding skin.

Explanation:

• Option a: A primary lesion is a new lesion that arises from previously normal skin. A secondary lesion is a lesion that arises from a primary lesion. A change in color (like a different color than the surrounding skin) is a characteristic of a secondary lesion, not a primary one. So, this option is incorrect.
• Option b: Primary lesions are newly - formed lesions. They can have various colors (not necessarily red or pink). For example, a macule (a type of primary lesion) can be of different colors depending on the cause (e.g., a freckle is a brown macule). Also, secondary lesions can also have colors (e.g., a crusted lesion may have a yellow - brown color from dried exudate). So, this is not a correct differentiating statement.
• Option c: Primary lesions are newly formed lesions on previously normal skin. Closed wounds are not related to the primary - secondary lesion classification. Secondary lesions arise from primary lesions (e.g., a vesicle (primary) may rupture to form a crust (secondary)). So, this option is incorrect.
• Option d: Primary lesions occur on previously normal skin. Secondary lesions are modifications of primary lesions (e.g., through processes like scratching, infection, etc.). For example, a plaque (a primary lesion) may become eroded (a secondary lesion) due to scratching.

Answer:

d. Primary lesions are flat compared to the surrounding skin, whereas secondary lesions protrude from the surface of the surrounding skin.