Cholesterol Blood Tests

Most cholesterol blood tests do not require fasting. Many modern lipid profile tests can be accurately performed after eating.

However, your clinician may recommend fasting in certain situations, particularly if triglyceride levels need to be assessed or if your cholesterol test is being performed alongside other blood tests that require fasting. You will be advised if any preparation is needed before your appointment.

Cholesterol blood test results are usually available within a few working days. The exact timeframe can vary depending on the laboratory processing the sample and the tests included.

Once your results are available, your clinician can explain what they mean and advise whether lifestyle changes, monitoring or further assessment may be appropriate.

LDL cholesterol stands for low-density lipoprotein cholesterol and is often referred to as "bad cholesterol".

High levels of LDL cholesterol can contribute to the build-up of fatty deposits inside the arteries, a process known as atherosclerosis. Over time, this can increase the risk of cardiovascular conditions such as heart disease and stroke.

Keeping LDL cholesterol within an appropriate range is an important part of maintaining long-term heart health.

HDL cholesterol stands for high-density lipoprotein cholesterol and is often known as "good cholesterol".

HDL helps transport excess cholesterol away from the bloodstream and back to the liver, where it can be processed and removed from the body. Higher levels of HDL are generally associated with a healthier cholesterol balance, although your overall cardiovascular risk depends on your complete health profile.

No. High cholesterol usually does not cause noticeable symptoms, which is why it is often described as a "silent" risk factor.

Many people are unaware they have raised cholesterol levels until they have a blood test. Regular testing can help identify high cholesterol early, allowing you to make lifestyle changes or receive treatment where appropriate to reduce future cardiovascular risk.

How often you should have a cholesterol blood test depends on your age, health, family history and any existing risk factors.

People with conditions such as diabetes, high blood pressure, heart disease or a history of raised cholesterol may require more frequent monitoring. Your healthcare professional can advise how often testing is appropriate for you.

Yes. Lifestyle changes can help improve cholesterol levels and support heart health.

Helpful changes may include:

• Eating a balanced diet that is lower in saturated fats.

• Increasing fibre intake through foods such as fruit, vegetables and whole grains.

• Exercising regularly.

• Maintaining a healthy weight.

• Stopping smoking.

• Limiting alcohol intake.

For some people, lifestyle changes alone may not be enough, and medication may be recommended depending on their overall cardiovascular risk.

Yes, you may still benefit from cholesterol testing even if you feel well. High cholesterol often has no symptoms, and many people are unaware that their levels are raised.

A cholesterol blood test can provide valuable information about your cardiovascular health and help identify potential risks before they contribute to serious health problems.

Yes. While diet plays an important role in cholesterol levels, other factors can also influence your results.

High cholesterol can be affected by:

• Genetics and family history.

• Age.

• Hormonal changes.

• Medical conditions.

• Physical activity levels.

• Certain medications.

Some people may have high cholesterol despite following a healthy lifestyle, which is why blood testing is important.

Yes. Some medications can affect cholesterol levels, either increasing or decreasing them.

If you take medication that may influence cholesterol, your clinician may consider this when interpreting your results. You should always inform your healthcare provider about any medicines or supplements you are taking.

If you are prescribed cholesterol-lowering medication, such as statins, regular blood tests may be recommended to monitor how well treatment is working.