Which of the following patient's lab findings would the nurse consider to be the most significant for the development of coronary artery disease?
1. total cholesterol of 210 mg/dL and low HDLs
2. high levels of HDLs and total cholesterol of 245 mg/dL
3. LDLs of 192 mg/dL and total cholesterol of 198 mg/dL
4. LDLs of 132 mg/dL and low HDL levels
3
Rationale: Low density lipoprotein (LDL) is a risk factor for the development of coronary artery disease and greater than 190 mg/dL is considered very high as defined by the National Blood, Lung, and Heart Institute's National Cholesterol Education Program. Even though the patient's cholesterol level is within the desirable range, the low density lipoprotein level is considered very high. Low density lipoprotein is the precursor to the development of atherosclerotic plaques which cause coronary artery disease. The total cholesterol level of 210 is considered borderline high. Even though the total cholesterol level of 245 is considered very high the low density lipoprotein level needs to be taken into consideration first. The low density lipoprotein level of 132 is considered borderline high.
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