CLS Cheat Sheet 2026

The 30 highest-yield CLS facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. In the classification of dyslipidemias, 'dysbetalipoproteinemia' is synonymous with which Fredrickson phenotype? → Type III
2. Which patient population is most likely to benefit from fenofibrate therapy as evidenced by subgroup analyses from clinical trials? → Patients with combined dyslipidemia (high TG + low HDL)
3. A patient is found to have borderline high TG (150–199 mg/dL) at a routine screening. Which secondary cause should be ruled out first given its high prevalence? → Poorly controlled type 2 diabetes mellitus
4. Why is weight management important in cardiovascular care? → It supports cardiovascular health
5. Which genetic mutation is most commonly associated with familial hypercholesterolemia in children? → LDLR loss-of-function
6. A patient with nephrotic syndrome develops hyperlipidemia primarily due to which mechanism? → Compensatory hepatic lipoprotein overproduction due to low oncotic pressure
7. Which genetic mutation is the most frequent cause of familial hypercholesterolemia in the general population? → LDLR mutations
8. What is the expected LDL-C reduction with ezetimibe monotherapy? → 15–25%
9. In a patient with familial hypercholesterolemia (FH) and LDL-C of 210 mg/dL despite maximum statin plus ezetimibe, which is the most appropriate next step? → Add a PCSK9 inhibitor (evolocumab or alirocumab)
10. A 14-year-old male with heterozygous FH initiates statin therapy. What baseline laboratory test is most important to obtain? → Creatine kinase and hepatic transaminases
11. In patients with HIV on antiretroviral therapy, which statin is preferred due to minimal interaction with protease inhibitors? → Pravastatin or rosuvastatin
12. What is the goal of antihypertensive therapy in cardiovascular risk? → Reduce stroke and heart attack risk
13. What is a key principle of secondary causes of dyslipidemia in Clinical Lipid Specialist Certification practice? → Applying structured methodologies based on evidence and best practices
14. Anorexia nervosa is associated with which lipid pattern? → Elevated total cholesterol and LDL-C with reduced bile acid excretion
15. What is the significance of measuring Lp(a) in children with familial hypercholesterolemia? → It identifies those at higher cardiovascular risk requiring more aggressive therapy
16. Which strategy best addresses health literacy barriers when educating patients about lipid management? → Use simple language, visual aids, and confirm comprehension with teach-back
17. In familial hypercholesterolemia (FH), what is the most common molecular defect? → Loss-of-function mutation in the LDL receptor gene
18. Which atypical antipsychotic is most strongly associated with secondary hypertriglyceridemia and metabolic syndrome? → Clozapine
19. A patient with alcoholism presents with TG of 1,800 mg/dL. The primary mechanism of alcohol-induced hypertriglyceridemia is: → Increased hepatic fatty acid synthesis and VLDL secretion with inhibited LPL
20. How should CLS professionals measure success in novel lipid-lowering therapies? → Using defined metrics, benchmarks, and regular evaluation against established goals
21. What challenge is most commonly encountered in secondary causes of dyslipidemia within Clinical Lipid Specialist Certification practice? → Resistance to change and difficulty maintaining consistency across stakeholders
22. Which genetic disorder is characterized by the accumulation of IDL and causes both hypercholesterolemia and hypertriglyceridemia with palmar xanthomas? → Type III hyperlipoproteinemia (familial dysbetalipoproteinemia)
23. Which lipid panel component most directly reflects the number of atherogenic lipoprotein particles when LDL-C and triglycerides are discordant? → Apolipoprotein B
24. Inclisiran is a small interfering RNA (siRNA) therapy that targets PCSK9. What is its primary mechanism of action? → Degrades PCSK9 mRNA in hepatocytes to reduce PCSK9 synthesis
25. A patient with hypothyroidism presents with TC 320 mg/dL and LDL-C 240 mg/dL. What is the most appropriate first step in management? → Treat the underlying hypothyroidism and recheck the lipid panel
26. Which condition is a major contributor to cardiovascular risk? → Diabetes mellitus
27. Which lipoprotein pattern is characterized by elevated VLDL and chylomicrons, causing a creamy supernatant and turbid infranatant on refrigerated plasma? → Fredrickson Type V
28. What is the most appropriate initial management for a patient presenting with triglycerides of 850 mg/dL to prevent acute pancreatitis? → Strict dietary fat restriction plus fibrate therapy plus omega-3 fatty acids
29. Pitavastatin is unique among statins primarily because it is metabolized by which enzyme pathway, resulting in minimal drug interactions? → Primarily glucuronidation with minimal CYP involvement
30. In the exogenous lipid pathway, chylomicrons are assembled in which cells? → Intestinal enterocytes