cholesterol Flashcards
is the leading cause of death of men and women
ASCVD (athloclerotic cardiovascular disease)
Risk of developing ASCVD is directly r/t
increases levels of blood cholesterol, in the form of LDL
Lower LDL, slow
slow progression of atherosclerosis, reduce risk for serious ASCVD
Very-low-density lipoproteins (VLDLs)
Triglycerides – levels above
500mg/dL – increase risk of pancreatitis.
Low-density lipoproteins (LDLs) (bad)
Cholesterol primary core lipid
Greatest contributor to coronary heart disease
For each 1% reduction in LDL
1% reduction in the risk for a major CV event.
High-density lipoproteins (HDLs) (good)
Cholesterol primary core lipid
Carry cholesterol from peripheral tissues back to the liver
HDL promotes
cholesterol removal – high HDL levels protect again ASCVD.
Risk Factors for ASCVD
Smoking High blood pressure Abnormal cholesterol Diabetes ASCVD risk status uncertain – a coronary artery calcium test (40 to 75 y.o.) Risk-enhancing factors (40 to 75 y.o.)
Primary hypercholesterolemia
(LDL-C, 160–189 mg/dL [4.1–4.8 mmol/L); non–HDL-C 190–219 mg/dL [4.9–5.6 mmol/L])*
Metabolic syndrome
(increased waist circumference, elevated triglycerides [>175 mg/dL], elevated blood pressure, elevated glucose, and low HDL-C [<40 mg/dL in men; <50 in women mg/dL] are factors; tally of 3 makes the diagnosis)
CKD
eGFR 15–59 mL/min/1.73 m2 with or without albuminuria; not treated with dialysis or kidney transplantation
Chronic inflammatory conditions
such as psoriasis, RA, or HIV/AIDS
History of premature menopause
before age 40 y) and history of pregnancy-associated conditions that increase later ASCVD risk such as preeclampsia
High-risk race/ethnicities
e.g., South Asian ancestry
Lipid/biomarkers
Associated with increased ASCVD risk
Persistently* elevated, primary hypertriglyceridemia (≥175 mg/dL);
If measured:
Elevated high-sensitivity C-reactive protein
(≥2.0 mg/L)
Elevated Lp(a):
A relative indication for its measurement is family history of premature ASCVD. An Lp(a) ≥50 mg/dL or ≥125 nmol/L constitutes a risk-enhancing factor especially at higher levels of Lp(a).
Elevated apoB
≥130 mg/dL: A relative indication for its measurement would be triglyceride ≥200 mg/dL. A level ≥130 mg/dL corresponds to an LDL-C >160 mg/dL and constitutes a risk-enhancing factor
ABI
<0.9
Adults > 20 y.o. without ASCVD/not on therapy – measure
LDL-C fasting or non-fasting plasma lipid profile (document)
If initial non-fasting lipid panel with triglycerides >
400mg/dL , repeat fasting lipid panel