Skip to content

Genetic sequencing analysis of full-length tumor DNA from whole blood

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

This test examines genetic changes in DNA extracted from your blood to identify mutations that may be driving your cancer or other conditions. It helps doctors understand how your cancer behaves and guides treatment decisions.

Quick summary

["Helps tailor cancer treatment by identifying specific genetic drivers in your blood."]

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

Key facts at a glance

LOINC
72487-2
Short code
TF gene Full Mut Anl Bld/T Seq
Synonyms
TF gene Full Mut Anl Bld/T Seq
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
sequencing
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What Is Being Tested?

The test analyzes DNA from your blood, focusing on the full-length sequences of genes that may be altered in cancer or other diseases. This includes checking for mutations, rearrangements, or other genetic alterations that could influence treatment options.

How Is the Test Performed?

A blood sample is collected, and your DNA is extracted. The genetic material is then sequenced using advanced laboratory techniques to detect specific mutations across relevant genes.

Why Might This Test Be Ordered?

Your doctor may recommend this test if you have cancer, a genetic predisposition to certain diseases, or if you’re exploring precision medicine options. It helps determine targeted therapies or monitor disease progression.

What Does the Test Result Mean?

Results identify specific genetic changes (mutations) in your blood. These findings can direct treatment choices, such as targeted drugs or clinical trials, or help assess disease activity.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Tumor DNA Sequencing (Blood)

Frequently asked questions

Will this test hurt or be uncomfortable?
No discomfort is expected. A simple blood draw is performed, similar to other routine blood tests.
How long will results take?
Results typically take 2–4 weeks, depending on laboratory processing and genetic analysis complexity.
Can I prepare for this test?
No special preparation is needed beyond standard blood collection guidelines (e.g., fasting may not apply).
  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