What skin-typing system assesses the skin's ability to withstand sun exposure?

The Fitzpatrick Scale is the correct choice because it is specifically designed to classify skin types based on their response to ultraviolet (UV) light exposure. The scale is named after Dr. Thomas B. Fitzpatrick, who developed it in 1975, and it categorizes skin into six types, ranging from very light (Type I) to very dark (Type VI). The primary function of this scale is to predict the skin's propensity to sunburn and its ability to tan, which is crucial for assessing risks for skin cancer and determining appropriate sun protection measures.

In contrast, the Glogau Scale focuses on the degree of photoaging and wrinkles in the skin rather than its ability to tolerate sun exposure. The Braden Scale is unrelated to skin typing; it is used to assess the risk of pressure ulcers based on various factors like mobility and nutrition. The Apgar Scale, on the other hand, is a system for evaluating the health of newborns immediately after birth, not related to skin types. Therefore, the Fitzpatrick Scale is the most relevant and accurate for assessing how different skin types will react to sun exposure.