LDL cholesterol is a blood measurement of the cholesterol carried in low-density lipoprotein particles, the main driver of atherosclerotic plaque. Practitioners use it to set dietary targets, track response to changes in fat and fibre intake, and spot results high enough to suggest a genetic cause. Friedewald-calculated LDL becomes unreliable when triglycerides are high, and treatment targets depend on absolute cardiovascular risk.
| Test type | Measured in a blood sample |
|---|---|
| Measurements required | LDL Cholesterol only |
| Sample and collection | Blood draw at a collection centre |
| Preparation | This test doesn't need fasting on its own. |
| Turnaround | 3 to 5 business days |
| Available through | Lipid Studies, part of the Baseline Health Check. Also in: Full Body Health Check, Weight Management Test. |
| Pricing | Included in the $99 Baseline Health Check |
| Results | Returned in the Vively practitioner platform, beside your client's other markers |
What are the LDL Cholesterol reference and optimal ranges?
| Typical lab reference | Vively optimal | |
|---|---|---|
| Adults | Below 3.5 mmol/L | 1.5 to 2.6 mmol/L |
Labs differ, so read the result against the range on the client's report (RCPA). The 3.5 mmol/L lab limit is a population flag; treatment targets depend on absolute cardiovascular risk and are set by the client's doctor.
Check a client's LDL Cholesterol result
Enter the value from your client's lab report to see where it sits against the typical lab range and the Vively optimal range.
A guide only, not a diagnosis. One result is a starting point: read it with symptoms, history and a repeat test. Labs differ, so check the result against the range on your client's report. Nothing you enter is stored or sent.
How do you arrange LDL Cholesterol testing through Vively?
- Get verified. Practitioners with a recognised qualification or membership (ATMS, NHAA, ANTA, Dietitians Australia, NSA, CMA or Ahpra registration) can request free practitioner access.
- Choose a panel. Log in to the practitioner platform and pick a panel that includes LDL Cholesterol, or build your own. It is included in the $99 Baseline Health Check.
- Client collects. Your client collects at a partner collection centre, with their request on their phone or printed.
- Review results. Results come back to you in the practitioner platform, beside your client's other markers, ready for the follow-up consult.
Which Vively panels include LDL Cholesterol?
Log in to the practitioner platform to view a panel in full, or build and save your own from 100+ tests and panels.
- Baseline Health Check74 markers across 11 lab groups$99
One fasting blood draw.
Full Blood CountUrea, Electrolytes & CreatinineLiver Function TestsCalcium, Phosphate & MagnesiumLipid StudiesDiabetes & Glycaemic StudiesIron StudiesThyroid Function Tests+3 moreLog in to view this panel - Weight Management Test27 markers · Heart & metabolicPrice on sign-upLDL CholesterolTotal CholesterolHDL CholesterolNon-HDL CholesterolTriglyceridesFree testosteroneSHBGTotal testosterone+19 moreLog in to view this panel
- Log in to view this panelFull Body Health Check87 markers · Health checksPrice on sign-up
Why does the optimal range sit there?
Our optimal range of 1.5 to 2.6 mmol/L sits well below the 3.5 mmol/L lab flag, because LDL harms arteries in proportion to lifetime exposure.
LDL causes atherosclerosis in proportion to total exposure over time, shown across genetic, cohort and trial data (Ference and colleagues, European Heart Journal, 2017). Lower lifetime LDL means fewer events.
This matches the band long described as optimal for adults at low risk (below 2.6 mmol/L, or 100 mg/dL). Vively's clinical view is that knowing what is optimal, as well as what needs medication, helps clients commit to diet change.
Applies to clients with established cardiovascular disease or high absolute risk under the 2023 Australian cardiovascular risk guideline.
What should LDL Cholesterol be read with?
- ContextLDL in range, ApoB above range
Possibly many small LDL particles, often with high triglycerides; ApoB is the better guide here.
- ContextLDL 5.0 mmol/L or above
Possible familial hypercholesterolaemia, especially with early heart disease in the family; needs GP review.
- HighRaised LDL with high TSH
Possible hypothyroidism raising LDL; worth GP review before relying on diet alone.
- ContextLDL rising in perimenopause or after menopause
Often seen as oestrogen falls across the menopause transition.
- ContextLDL near optimal with high Lp(a)
Risk can still be raised, as Lp(a) is largely genetic and barely moves with diet.
What can affect a LDL Cholesterol result?
- Triglycerides above 4.5 mmol/L, which make calculated (Friedewald) LDL unreliable.
- Very low-carbohydrate, high saturated fat diets, which raise LDL markedly in some people.
- Rapid weight loss, which can raise LDL temporarily.
- Acute illness, surgery or a recent heart attack, which lower LDL for several weeks.
- Hypothyroidism, pregnancy, nephrotic syndrome, cholestasis, corticosteroids and retinoids, which raise it.
- Statins, ezetimibe, plant sterols and soluble fibre supplements, which lower it.
When should you refer the client to their GP?
- LDL 5.0 mmol/L or above in an adult, or a family history of heart disease before 55 in men or 60 in women: GP review for familial hypercholesterolaemia.
- Tendon xanthomata, or corneal arcus before age 45.
- Raised LDL with diabetes, chronic kidney disease, high blood pressure or smoking, for absolute risk assessment.
- Raised LDL with a high TSH or very high triglycerides.
How should a client prepare for a LDL Cholesterol test?
Copy or print this to send to your client.
Preparing for your LDL Cholesterol test
- This test doesn't need fasting on its own.
- If your practitioner has requested the Baseline Health Check, fast for 8 to 12 hours before a morning collection (water is fine).
- Prepare the same way each time you retest, so your LDL results compare fairly.
- Take your pathology request to any of 4,000+ collection centres. Bring it printed or on your phone.
- Keep taking prescribed medicines as usual unless your doctor tells you otherwise.
- Results usually take 3 to 5 business days and come to your practitioner. Book your results appointment for after that.
How do practitioners use LDL Cholesterol with clients?
LDL responds to a Mediterranean-style pattern built on vegetables, legumes, nuts, extra virgin olive oil and oily fish, with fewer highly processed foods high in saturated and trans fats. When LDL stays high despite good habits, or the client has other risk factors, involve the GP.
LDL Cholesterol FAQs
Can a nutritionist, dietitian or naturopath order an LDL cholesterol test through Vively?
Yes. Add it to a client panel on the Vively practitioner platform. It is part of Lipid Studies in the $99 Baseline Health Check, and is also in Full Body Health Check and Weight Management Test. No account yet? Request free access.
Should I order ApoB as well as LDL?
Yes, when triglycerides are raised or the client has insulin resistance. LDL cholesterol measures cholesterol content, and ApoB counts atherogenic particles, one ApoB per particle. When particles are small and cholesterol-poor, LDL can look fine while ApoB is high. Vively's clinical view is that the ApoB to ApoA1 ratio can detect cardiovascular risk better than a standard lipid profile.
Is my client's LDL calculated or measured?
Usually calculated. Most labs estimate LDL from total cholesterol, HDL and triglycerides with an equation such as Friedewald, which is unreliable once triglycerides pass 4.5 mmol/L. Some labs use newer equations or measure LDL directly. Check the report footnote, and lean on non-HDL cholesterol or ApoB when triglycerides are high.
At what LDL should I consider familial hypercholesterolaemia?
Consider it at an LDL of 5.0 mmol/L or above in an adult. A family history of heart disease before 55 in men or 60 in women, tendon xanthomata, or corneal arcus before age 45 strengthen the case. These clients need GP review, as diet alone is unlikely to explain the result.
What can make an LDL result misleading?
Several things shift LDL temporarily or push it away from usual. Acute illness, surgery or a recent heart attack lower it for several weeks, while rapid weight loss can raise it. Very low-carbohydrate, high saturated fat diets raise it markedly in some people. Hypothyroidism, pregnancy and corticosteroids also raise it, so check these before blaming diet.
References
- Ference BA, Ginsberg HN, Graham I, et al. Low-density lipoproteins cause atherosclerotic cardiovascular disease. European Heart Journal. 2017.
- Commonwealth of Australia. Australian guideline for assessing and managing cardiovascular disease risk. 2023.
- Watts GF, Sullivan DR, Hare DL, et al. Integrated guidance for enhancing the care of familial hypercholesterolaemia in Australia. Heart, Lung and Circulation. 2021.
- Royal College of Pathologists of Australasia. RCPA Manual: Lipids.