Final answer:
The estimated % of burned skin for an adult patient with burns to the anterior portion of each LE and genitals is approximately 37%.
Step-by-step explanation:
The estimated % of burned skin in an adult patient who sustained burns to the anterior portion of each lower extremity (LE) and genitals can be calculated using the 'rule of nines.' According to this guideline, the lower extremities each account for 18% (36% in total) of the body's surface area, while the genitals account for an additional 1%. Therefore, the estimated % of burned skin in this scenario would be approximately 37% (36% + 1%).