Cholesterol Test

Measures triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol and non-HDL cholesterol. These values contribute to cardiovascular-risk assessment alongside factors such as age, blood pressure, smoking, diabetes and family history.

At a glance

• Sample: Blood
• Collection: Self-collected sample using the supplied kit
• Estimated turnaround: 1 day from laboratory receipt of a usable sample

What this test measures

Triglycerides

A type of fat circulating in blood. A raised result may relate to recent food intake, alcohol, diabetes, medicines or inherited factors; very high levels can increase pancreatitis risk.

Total cholesterol

The overall amount of cholesterol in blood. Higher values can contribute to cardiovascular risk, but treatment decisions use the full lipid pattern and overall risk rather than total cholesterol alone.

HDL cholesterol

Cholesterol carried in high-density lipoproteins. HDL contributes to risk calculations, but a higher value does not cancel the effect of raised LDL or other cardiovascular risk factors.

LDL cholesterol

Cholesterol carried in low-density lipoproteins. Higher LDL is associated with greater cardiovascular risk; targets depend on overall risk and whether cardiovascular disease is already present.

Non-HDL cholesterol

Total cholesterol minus HDL, covering cholesterol in potentially atherogenic particles. A higher result reflects more cholesterol in potentially atherogenic particles and is interpreted with overall cardiovascular risk.

How clinicians use this test

Clinicians use the 5 listed markers to investigate relevant symptoms, monitor a known condition or add context to a broader health assessment. The result can support a diagnosis or next-step decision, but it is not a diagnosis on its own.

Is this the right test for you?

This may suit someone who specifically wants to check the 5 listed markers, or repeat the marker(s) as part of an established monitoring plan. Check that the listed panel matches the question you want answered before ordering. The test should not delay assessment of persistent or worsening symptoms.

Preparation and collection

Return the sample on the same day it is collected. Do not post over weekends or bank holidays.

Understanding your result

The most useful information is usually the pattern across the 5 listed markers, not one isolated flag. Related markers can support or contradict each other, and a mildly out-of-range value may reflect normal biological variation, collection conditions or temporary illness rather than disease.

Your results and next steps

Review the 5 listed markers against the reference range and laboratory comment, then consider whether the pattern fits your symptoms, medicines and reason for testing. Share a concerning or unexpected result with a clinician before changing treatment, supplements or diet.

Limitations

The result is a snapshot from one sample. It cannot diagnose a condition on its own; values inside or outside a reference range require clinical context.

When to get medical help

Do not wait for a home-test result if you feel seriously unwell. Call 999 for a life-threatening emergency, or use NHS 111 when you need urgent advice and are unsure what to do.