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Genetic Mutation Detection in Leukemia Blood (Targeted Next-Generation Sequencing)

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

This test checks for specific genetic mutations in white blood cells that may be linked to leukemia, helping guide treatment decisions.

Quick summary

["Helps identify genetic changes that may influence leukemia treatment options."]

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

Key facts at a glance

LOINC
21667-1
Short code
F5 gene Mut Anl Bld/T
Synonyms
F5 gene Mut Anl Bld/T
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
molgen
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 This Test Measures

The test analyzes DNA from your blood sample to detect known mutations associated with leukemia. These mutations can affect how cancer cells grow and respond to treatment. The method involves sequencing your blood cells’ genetic material to pinpoint these changes.

Why It’s Ordered

Your healthcare provider may order this test if you have leukemia or are at higher risk due to family history, symptoms, or other risk factors. It helps determine if certain targeted therapies could be most effective for your condition.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The blood is processed to isolate white blood cells, which are then examined for specific genetic mutations. Results are typically available within days to weeks, depending on lab processing times.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to avoid certain medications or supplements that could interfere with results. If you’re on blood thinners, let your provider know before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Detecting these mutations can help tailor leukemia treatment to your specific genetic profile. Some mutations may respond better to certain drugs, while others may require different approaches, including clinical trials or experimental therapies.

Short name

Leukemia Mutation Screen (bld)

Frequently asked questions

Will this test show all types of leukemia?
No, this test focuses on specific mutations linked to certain leukemia subtypes. It may not detect all possible genetic changes or rare mutations. Your provider will discuss the most relevant findings for your diagnosis.
How long will it take to get results?
Results typically take 7–14 business days, depending on lab workload and complexity. Your healthcare team will contact you once results are ready, and they’ll explain what they mean for your care plan.
Can I fast or stop certain medications before this test?
No fasting is required, but inform your provider about any medications (including supplements) you’re taking, as some may affect test results or blood clotting.
  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