A nurse is obtaining a health history from a client. Which of the following findings should the nurse identify as a modifiable risk factor for developing a disease?

Choice A rationale Family history reflects the inherited susceptibility to specific conditions based on the health patterns of biological relatives. While it provides critical data for screening and early detection, an individual cannot change their ancestral lineage or the health events of their parents and siblings. Because these genetic predispositions are fixed at birth, they are classified as non-modifiable risk factors in epidemiological studies and clinical preventative health assessments. Choice B rationale Chronological age is a primary non-modifiable risk factor because the physiological aging process involves progressive cellular decline and increased vulnerability to chronic diseases. As time passes, the cumulative exposure to environmental stressors and the natural reduction in homeostatic efficiency cannot be reversed. In disease pathology, age-related changes in organ function and immune response are inevitable, making it a constant variable that healthcare providers must account for without the possibility of alteration. Choice C rationale Genetics involves the specific DNA sequences and chromosomal structures inherited from biological parents that determine various health traits and disease predispositions. Genomic science confirms that while lifestyle can influence gene expression through epigenetics, the underlying genetic code itself remains unchanged throughout a person's life. Therefore, genetic mutations or hereditary markers for conditions like cystic fibrosis or certain cancers are fundamental non-modifiable factors that dictate baseline health risks. Choice D rationale Sunbathing is a behavioral choice involving exposure to ultraviolet radiation, which is a known carcinogen for skin cells. Unlike age or genetics, an individual can choose to limit sun exposure, use protective clothing, or apply sunscreen to reduce the risk of developing melanoma or basal cell carcinoma. Because this behavior is under the direct control of the individual and can be altered through education and lifestyle changes, it is classified as a modifiable risk factor.