Lipoprotein (a)

What is the Lipoprotein (a) test?

The Lipoprotein (a), often written as Lp(a), test measures a specific type of cholesterol particle made up of LDL cholesterol bound to a unique protein called apolipoprotein(a). Unlike other lipids, Lp(a) levels are largely genetically determined and remain relatively stable throughout life.

Lp(a) is considered atherogenic and pro-thrombotic, meaning it contributes to plaque formation in arteries and increases clotting risk. Standard cholesterol panels do not measure Lp(a), which is why cardiovascular risk may be underestimated without it.

This test is increasingly recommended in preventive cardiology and advanced cardiovascular risk assessment.

Why do I need a Lipoprotein (a) test?

Many people with normal cholesterol levels still develop cardiovascular disease. Elevated Lp(a) is a recognised independent risk factor.

You may need a Lipoprotein (a) test if you:

• Have a family history of early heart disease or stroke
• Have cardiovascular disease despite normal cholesterol
• Have high LDL that doesn’t respond well to treatment
• Have a history of aortic valve disease
• Want advanced cardiovascular risk screening
• Have recurrent clotting events
• Are assessing inherited lipid risk

Conditions linked to elevated Lipoprotein (a) include:

• Coronary artery disease
• Heart attack at a young age
• Stroke
• Peripheral artery disease
• Aortic valve stenosis

Benefits of the Lipoprotein (a) test

• Identifies inherited cardiovascular risk
  Detects risk not seen on standard lipid panels.
• One-time lifetime test for most people
  Levels are genetically stable.
• Improves heart disease risk stratification
  Enhances prevention strategies.
• Explains premature cardiovascular disease
  Even with normal LDL levels.
• Supports personalised lipid management
  Guides intensity of risk reduction.
• Clinically recognised risk marker
  Endorsed by cardiology guidelines.
• Relevant for family screening
  Helps identify at-risk relatives.
• Simple blood test
  Requires only one sample.

Step by step – how the test works

You can access Lipoprotein (a) testing UK-wide through two options:

1. Clinic appointment
   Attend your nearest UK clinic, where a healthcare professional will take your blood sample.
2. At-home or hotel visit (£60 extra)
   A qualified phlebotomist comes to your home or hotel, so you don’t need to travel.

Your sample is analysed in an accredited UK laboratory, and results are delivered securely.

Your results explained

Low Lipoprotein (a)

Associated with lower inherited cardiovascular risk.

Typical UK interpretation:

• < 30 mg/dL (or < 75 nmol/L)

Moderate Lipoprotein (a)

May contribute to cardiovascular risk, especially with other factors present.

Typical UK interpretation:

• 30–50 mg/dL (75–125 nmol/L)

High Lipoprotein (a)

Associated with significantly increased cardiovascular and clotting risk.

Typical UK interpretation:

• > 50 mg/dL (> 125 nmol/L)

Units and reference ranges may vary by laboratory.