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Cardiovascular Risk Marker Profile: DNA-Based Probe Analysis for Carotid Artery Plaque Assessment

Published: August 9, 2026Updated: August 16, 2026

This test uses a specialized DNA probe to assess the presence and characteristics of plaque in your carotid arteries, which may indicate increased risk for heart disease or stroke.

Quick summary

["This test helps evaluate plaque buildup in your arteries that could affect your heart health."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
105739-7
Short code
CMV DNA Pcar Ql NAA+probe
Synonyms
CMV DNA Pcar Ql NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The test involves analyzing a sample of your blood or tissue to detect specific DNA sequences associated with carotid artery plaque. These sequences can provide insights into the composition and stability of plaque, which may influence cardiovascular risk. This method is often used in advanced diagnostic screening to identify early signs of atherosclerosis.

Why It’s Done

Your healthcare provider may recommend this test if you have risk factors for cardiovascular disease, such as high blood pressure, high cholesterol, diabetes, or a family history of heart disease. It may also be used to monitor existing plaque in carotid arteries for those who have already undergone procedures like carotid endarterectomy.

Sample Collection and Preparation

A blood sample is typically collected from a vein in your arm. If this is part of a more comprehensive cardiovascular evaluation, you may also have a small tissue sample taken from the carotid artery during a procedure. The sample is then processed to extract DNA for analysis.

What to Expect Before the Test

No special preparation is usually required, but you may be asked to fast for a few hours before the blood draw if instructed by your doctor. Avoid smoking or consuming caffeine for at least 30 minutes before the test to ensure accurate results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How long does it take to get the results of this test?
Results from this test are usually available within a few days to a couple of weeks, depending on the laboratory and the complexity of the analysis. Your healthcare provider will discuss the findings with you during a follow-up visit.
What are the common risks or side effects of this test?
The most common side effect of a blood draw is mild bruising, swelling, or discomfort at the injection site. If a tissue sample is taken during a procedure, there may be temporary soreness or bruising. Rarely, complications such as infection or excessive bleeding can occur, but these are uncommon with modern medical practices.
Can this test replace other cardiovascular risk assessments, such as cholesterol tests or echocardiograms?
No, this test is not a standalone replacement for other cardiovascular assessments. It is often used in conjunction with other tests, such as cholesterol panels, blood pressure monitoring, or imaging studies like ultrasound or CT scans. Your healthcare provider will use the results of this test alongside other diagnostic information to create a comprehensive risk assessment.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy