Cardio IQ® Lipoprotein (a) Test
The Cardio IQ Lipoprotein(a) test measures the concentration of lipoprotein(a), or Lp(a), in a blood serum sample. Quest describes elevated Lp(a) as associated with increased risk of atherosclerosis, coronary heart disease and ischemic stroke.
About this test
Lipoprotein(a), often written Lp(a), is a lipoprotein particle in the blood, and Quest describes elevated concentrations as associated with increased risk of atherosclerosis, coronary heart disease and ischemic stroke. The test measures the level of Lp(a) in a serum sample using an immunoturbidimetric method.
Because elevated Lp(a) is one of several markers associated with cardiovascular risk, a clinician typically reads this result alongside standard lipid values and other risk factors rather than by itself.
Who might consider this test?
- Often looking at their cardiovascular risk picture as a whole
- Lipoprotein(a) is one additional marker some clinicians weigh given its association with atherosclerosis
- Coronary heart disease and stroke risk
Test details
| Quest code | 91729 |
|---|---|
| Methodology | Immunoturbidmetric |
| Sample type | 1 mL serum |
| Collection | Quest patient service center |
Related tests and panels
Measures cardiovascular and metabolic markers commonly reviewed together when…
A broad set of markers related to blood sugar, insulin, cardiovascular risk and…
Measures lipoprotein(a), also called Lp(a), a substance associated with coronary…
Quest resources
Additional details
What this test looks at
The test reports the concentration of lipoprotein(a) in a serum sample, measured using an immunoturbidimetric method. Quest lists this specific version under the Cardio IQ name.
How it's often used alongside other tests
Because Quest describes elevated Lp(a) as one part of cardiovascular risk, it is often read together with standard lipid values such as total cholesterol and LDL cholesterol, rather than as a stand-alone number, so a clinician can weigh it within the fuller picture.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does this test measure?
It measures the concentration of lipoprotein(a), or Lp(a), in a blood serum sample using an immunoturbidimetric method.
How is the sample collected?
Through a routine blood draw; the test uses a serum sample collected at a Quest Diagnostics patient service center.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
Why is elevated Lp(a) significant?
Quest describes elevated lipoprotein(a) as associated with increased risk of atherosclerosis, coronary heart disease and ischemic stroke, which is why some clinicians include it in a broader cardiovascular risk assessment.
What does a Cardio IQ Lp test cost without insurance?
$49. Celio Health's price is a flat cash price and insurance is never billed: the required physician's order is included.