CLS Lifestyle Modification & Nutrition Counseling 3

Question 1

Which type of dietary fiber has the greatest evidence for LDL cholesterol reduction?

Accepted Answer

Soluble viscous fiber found in oats and psyllium

Answer

Soluble viscous fibers (beta-glucan from oats, psyllium) bind bile acids in the gut, increasing fecal excretion and reducing hepatic LDL-C, with a well-established evidence base.

Question 2

A patient following a very-low-carbohydrate ketogenic diet shows elevated LDL-C on labs. What is the most likely explanation?

Accepted Answer

High saturated fat intake common in ketogenic diets upregulates LDL receptor degradation

Answer

High saturated fat consumption typical of ketogenic diets increases hepatic PCSK9 activity and reduces LDL receptor expression, leading to elevated plasma LDL-C.

Question 3

Which strategy best helps a patient adhere to long-term dietary changes for lipid management?

Accepted Answer

Use motivational interviewing to align dietary changes with the patient's own values and goals

Answer

Motivational interviewing is an evidence-based counseling approach that improves long-term dietary adherence by exploring patient ambivalence and building intrinsic motivation.

Question 4

Plant sterols and stanols lower LDL cholesterol primarily through which mechanism?

Accepted Answer

Competing with dietary and biliary cholesterol for intestinal absorption

Answer

Plant sterols and stanols are structural analogs of cholesterol that displace cholesterol from intestinal micelles, reducing its absorption by 30-50%.

Question 5

A 45-year-old sedentary patient with mixed dyslipidemia asks which type of exercise most effectively lowers triglycerides. What is most accurate?

Accepted Answer

Aerobic exercise of sufficient duration and intensity is most effective for lowering triglycerides

Answer

Sustained aerobic exercise increases lipoprotein lipase activity and reduces hepatic VLDL secretion, making it the most effective exercise modality for triglyceride reduction.

(CLS) Clinical Lipid Specialist Certification Practice Test

(CLS) Clinical Lipid Specialist Certification Practice Test

CLS Lifestyle Modification & Nutrition Counseling 3