What symptom is associated with a dose of 200 to 300 rad to the skin?

A dose of 200 to 300 rad to the skin is known to cause noticeable and immediate effects, primarily manifested as redness of the skin, which is medically termed erythema. This occurs as a direct result of the radiation damaging the skin’s tissue. At this level of exposure, you might also experience hair loss, particularly if the radiation is intense and targeted to areas with significant hair follicles, as the hair cells are sensitive to radiation.

The other symptoms listed, while associated with radiation exposure, tend to occur at different dose ranges or involve different bodily systems. For example, menstruation suppression and temporary sterilization are more related to radiation exposure affecting the reproductive organs and would require higher doses or different exposure scenarios. Likewise, cataract formation typically happens after prolonged exposure to lower doses over time rather than an acute dose within this specific range.