Cardiovascular Health
Advanced heart health panel with hs-CRP and homocysteine.
Lipoproteins are the particles that carry cholesterol through the blood, and the CVRM guideline calls the lipoproteins that carry the protein apoB the 'bad' ones. Non-HDL cholesterol measures the cholesterol in all those apoB-containing particles together.
According to Thuisarts, when cholesterol is too high for years the blood vessels can close up, usually slowly, which raises the risk of a heart attack and a stroke, among others. Only a blood test shows whether non-HDL cholesterol is high.
For people up to and including 70, the CVRM guideline links the targets for non-HDL cholesterol to those for LDL: an LDL of 1.8 mmol/l after a past cardiovascular disease and 2.6 mmol/l with another raised risk corresponds to a non-HDL of 2.6 and 3.4 mmol/l.
Doctor's Assessment Included
Non-HDL cholesterol is total cholesterol minus HDL cholesterol: the cholesterol in all the particles that can cause hardening of the arteries. Laboratories give no normal value for it; the Dutch CVRM guideline calls a non-fasting value above 3.9 mmol/l abnormal, and treatment targets are below 3.4 or below 2.6 mmol/l.
| Result | Value (mmol/l) |
|---|---|
| Normal | < 3,9 |
| Elevated | ≥ 3,9 |
Non-HDL cholesterol is calculated as total cholesterol minus HDL cholesterol and adds up all the "bad" (atherogenic) cholesterol. Because fasting barely affects it, it can be measured in non-fasting blood. The limit of 3.9 mmol/l is the NHG guideline CVRM cut-off for non-fasting blood (80th percentile). Which value is desirable for you depends on your overall risk of cardiovascular disease: if there is a reason to treat, the NHG uses a lower target, < 3.4 mmol/l at high risk and < 2.6 mmol/l at very high risk (for example after cardiovascular disease). Discuss your result with your GP.
Source: NHG Reference population: Dutch adults (non-fasting, 80th percentile)
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.
Non-HDL cholesterol is total cholesterol minus HDL cholesterol in millimoles per litre (mmol/l), and no estimating formula is involved. According to the CVRM guideline, LDL cholesterol is usually calculated with the Friedewald formula, except when triglycerides are higher than 4.5 mmol/l or with dysbetalipoproteinaemia.
A high non-HDL cholesterol can fit familial hypercholesterolaemia (FH), an inherited high cholesterol. According to the guideline on inherited dyslipidaemia, a physical examination then looks for tendon xanthomas: cholesterol deposits in tendons that the guideline calls characteristic of FH.
According to the CVRM guideline, non-HDL cholesterol follows the effect of cholesterol-lowering treatment, with targets for people up to and including 70: after a past cardiovascular disease an LDL below 1.8 mmol/l, and with another raised risk an LDL below 2.6 mmol/l. According to the guideline, targets should be used with some nuance; a value just above the target can sometimes be accepted.
A low non-HDL cholesterol arises with a low total or LDL cholesterol. With a very low LDL cholesterol, below 0.5 to 1.3 mmol/l, the guideline on inherited dyslipidaemia advises genetic testing for hypobetalipoproteinaemia, an inherited low LDL.
A high non-HDL cholesterol cannot be felt: according to Thuisarts, high cholesterol causes no symptoms and is not a disease. Cholesterol that stays too high for years raises the risk of a heart attack, a stroke, angina and peripheral artery disease, according to Thuisarts, although not everyone gets these diseases.
Cholesterol-lowering medicines
Cholesterol-lowering drugs such as statins lower non-HDL cholesterol; for prevention, the UK NICE guideline aims for a fall of more than 40 percent.
Acute illness
Total cholesterol drops at the onset of an acute illness and returns to normal during recovery.
Inherited high cholesterol
The most common inherited cause of high LDL cholesterol, and with it high non-HDL cholesterol, is the sum of many small gene variants; familial hypercholesterolaemia, caused by a single gene, affects about 1 in 250 people.
Underactive thyroid
An underactive thyroid can raise LDL cholesterol, and with it non-HDL cholesterol, which includes LDL; the Dutch hereditary dyslipidaemia guideline therefore advises measuring TSH, among other tests.
Anabolic steroids or protein loss through the kidneys
Anabolic steroids and a kidney disease with heavy protein loss in the urine (nephrotic syndrome) can raise LDL cholesterol, and with it non-HDL cholesterol.
Alcohol or poorly controlled diabetes
According to the UK NICE guideline, heavy drinking and poorly controlled diabetes are possible causes of abnormal blood fats, non-HDL cholesterol among them.
Diet, weight and exercise
An unhealthy diet high in saturated fat, being overweight and little exercise can raise cholesterol, and with it non-HDL cholesterol.
Many people with very high cholesterol in the family can point to inherited high cholesterol, according to Thuisarts, and a high non-HDL cholesterol, the cholesterol outside HDL, is then one to discuss with your GP.
According to the CVRM guideline, in large studies of patients with or without cardiovascular disease, non-HDL cholesterol is on average 0.8 mmol/l higher than LDL cholesterol.
According to the guideline on inherited dyslipidaemia, heterozygous familial hypercholesterolaemia (FH) is one of the most common single-gene conditions, at 1 in 250 people.
The LDL targets to which the CVRM guideline links the non-HDL targets, 1.8 mmol/l after a past cardiovascular disease and 2.6 mmol/l with another raised risk, apply to people up to and including age 70. The guideline describes the targets for people over 70 in a separate module, and it calls that age limit not an absolute limit.
This marker is included in the following test panels.
Advanced heart health panel with hs-CRP and homocysteine.
Blood sugar, insulin resistance, lipids, and liver markers.
Age-appropriate screening including testosterone and PSA.
A broad men's health panel: hormones, heart, metabolic, and organ function in one blood draw.
Medical reviewer
Dr. Naimi oversees the medical standards behind our content and assessments.
Medical policyDoctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
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