Long-term somatic effects of radiation include

Long-term somatic effects of radiation include

• A. Nausea and vomiting
• B. Carcinogenesis and leukemia
• C. Skin erythema
• D. Hair loss only

Answer: (B)

Long-term somatic effects are late consequences of radiation exposure that can appear months or years after the event. They arise from DNA damage in normal body (somatic) cells that can accumulate and lead to malignant changes. Carcinogenesis and leukemia are classic examples of these late effects, reflecting an increased risk of cancer in irradiated tissues and in the hematopoietic system. These effects are stochastic, meaning their likelihood increases with dose and does not have a strict threshold, unlike some immediate reactions. By contrast, nausea, vomiting, and skin erythema are acute, early effects that occur soon after high-dose exposure and reflect direct tissue injury rather than long-term cancer risk. Hair loss can also be an early, transient response to high-dose exposure.

Long-term somatic effects are late consequences of radiation exposure that can appear months or years after the event. They arise from DNA damage in normal body (somatic) cells that can accumulate and lead to malignant changes. Carcinogenesis and leukemia are classic examples of these late effects, reflecting an increased risk of cancer in irradiated tissues and in the hematopoietic system. These effects are stochastic, meaning their likelihood increases with dose and does not have a strict threshold, unlike some immediate reactions. By contrast, nausea, vomiting, and skin erythema are acute, early effects that occur soon after high-dose exposure and reflect direct tissue injury rather than long-term cancer risk. Hair loss can also be an early, transient response to high-dose exposure.