DOT Certification Practice Exam

Which of the following is a modifiable risk factor for CHD?

1. Gender

2. Age

3. Physical inactivity

4. Family history

The correct answer is: Physical inactivity

Physical inactivity is identified as a modifiable risk factor for coronary heart disease (CHD) because it is a behavior that individuals can change to improve their overall cardiovascular health. Engaging in regular physical activity can help lower the chances of developing CHD by improving heart function, reducing blood pressure, enhancing cholesterol levels, and aiding in weight management. In contrast, gender and age are non-modifiable risk factors, as individuals cannot change their biological sex or how old they are, though these factors can influence the likelihood of developing CHD. Similarly, family history reflects hereditary traits that cannot be altered, even though knowing one's family history can be beneficial for assessing risk and encouraging preventive measures. Addressing physical inactivity through lifestyle changes such as increasing exercise can significantly mitigate the risk of CHD, making it an essential focus for prevention strategies.