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Genomic DNA from Whole Blood – Quantitative Probe-Based Assay

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

This test measures the quantity of DNA extracted from your blood sample using a specialized probe-based method. It helps assess genetic material for research, screening, or diagnostic purposes.

Quick summary

["This test evaluates your blood’s DNA content, which may support genetic studies or specific clinical evaluations."]

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

Key facts at a glance

LOINC
6357-8
Short code
C trach DNA Ur Ql NAA+probe
Synonyms
C trach DNA Ur Ql NAA+probe
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects and quantifies the total amount of genomic DNA present in your blood cells. DNA is the genetic material found in all cells, and its concentration can vary based on factors like cell health, blood composition, or specific medical conditions.

How the Test Works

Your blood sample is processed to isolate DNA. A probe-based assay then measures the DNA concentration with high precision, often used for research, genetic screening, or monitoring certain genetic conditions.

Why It Might Be Ordered

Doctors may order this test for research studies, genetic counseling, or to investigate conditions related to DNA integrity, such as certain inherited disorders or blood-related diseases. It may also be used in clinical trials or specialized diagnostic workflows.

Sample Preparation and Collection

You’ll provide a blood sample, typically drawn from a vein. The lab processes it to extract DNA, which is then analyzed. Follow your healthcare provider’s instructions for fasting or preparation if required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

While DNA concentration in blood can reflect overall cellular health or genetic composition, it is not typically used for diagnosing common medical conditions. Instead, it may be part of broader genetic testing, research, or specialized diagnostic protocols. Abnormal DNA levels could indicate underlying issues like blood disorders or genetic mutations, but further evaluation is needed.

Short name

DNA Test (Whole Blood)

Frequently asked questions

What does a DNA test in blood mean?
This test measures the amount of DNA in your blood, not specific genes or conditions. It’s often used in research or specialized studies rather than routine diagnostics. Results may not indicate a single health issue but could help assess genetic material for further investigation.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will discuss the timeline with you before ordering the test.
Is this test painful or invasive?
The blood draw is a standard procedure and may cause mild discomfort. The test itself involves minimal additional steps beyond standard DNA extraction, which is done in a lab setting.
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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