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Genetic Mutation Analysis of Chronic Lymphocytic Leukemia (CLL) – Blood

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

This test checks for specific genetic changes in your white blood cells, which may help determine your treatment options for chronic lymphocytic leukemia (CLL).

Quick summary

["Genetic mutations in CLL can influence how your cancer behaves and responds to treatment."]

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

Key facts at a glance

LOINC
41113-2
Short code
CLL gene Mut Anl Bld/T
Synonyms
CLL 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

Why This Test Is Done

Doctors may recommend this test if you have been diagnosed with chronic lymphocytic leukemia (CLL) or if your blood tests suggest a high risk of CLL. It helps identify genetic mutations that can guide personalized treatment plans, such as targeted therapies or monitoring for disease progression.

What to Expect Before the Test

No special preparation is needed. A blood sample will be taken from a vein in your arm, similar to other routine blood tests. The process is quick and usually painless.

What the Test Results Mean

Results will show whether certain genetic mutations (such as IGHV mutations or others like TP53 or NOTCH1) are present. These mutations can help determine the aggressiveness of your CLL and may influence treatment decisions, such as whether you need immediate treatment or closer monitoring.

How the Test Works

The test analyzes DNA from your white blood cells (specifically from whole blood) to detect specific genetic mutations linked to CLL. Advanced laboratory techniques, such as next-generation sequencing, are used to identify these changes.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

CLL Mutation Test

Frequently asked questions

How might my CLL mutation test results affect my care?
Results can help doctors decide if you need immediate treatment, choose specific therapies, or monitor your condition more closely. For example, certain mutations may indicate a more aggressive disease requiring stronger treatments, while others may suggest a slower progression that allows for observation.
What are the most common mutations found in CLL?
Common mutations include IGHV (immunoglobulin heavy chain variable region) mutations, which are often associated with a slower-growing disease, and mutations in genes like TP53, NOTCH1, or ATM, which may suggest more aggressive disease behavior.
Do I need to do anything special after the test?
No special actions are required after the test. Your doctor will discuss the results and next steps with you, which may include additional testing, treatment planning, or follow-up blood work.
  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