Which of the following findings places a female client at risk for coronary artery disease?

The identification of the LDL (low-density lipoprotein) level as a risk factor for coronary artery disease is based on its role in lipid metabolism and cardiovascular health. Elevated levels of LDL cholesterol are associated with the increased build-up of plaque in the arteries, leading to atherosclerosis, which significantly heightens the likelihood of coronary artery disease (CAD).

Monitoring and managing LDL levels is crucial because high LDL can contribute to blockages in the coronary arteries, reducing blood flow and increasing the risk for heart attacks and other cardiovascular issues.

In the context of the other options, while HDL (high-density lipoprotein) levels, blood pressure readings, and demographic factors like age and gender can also influence cardiac risk, they operate within a broader context of cardiovascular health. HDL, for instance, is often considered "good" cholesterol, as higher levels may protect against heart disease. Blood pressure is indeed a critical factor, but it is typically the quality and levels of cholesterol that are more directly linked to coronary artery disease risk in terms of individual lipid profiles. Similarly, while age and gender can influence risk, the specific focus on LDL levels provides a clear, direct link to the mechanisms involved in the development of coronary artery disease.