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Genetic analysis for the *Hemoglobin Variant* (specifically detecting the presence of the β-thalassemia-associated mutation in hemoglobin)

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

This test checks for genetic changes in your hemoglobin that may cause blood disorders like thalassemia.

Quick summary

["Helps identify inherited blood conditions that might affect your health."]

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

Key facts at a glance

LOINC
61172-3
Short code
HBV M250L Islt Ql Genotyp
Synonyms
HBV M250L Islt Ql Genotyp
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
genotyping
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 looks for specific mutations in the genes responsible for producing hemoglobin, the protein in red blood cells that carries oxygen. These mutations can lead to conditions like thalassemia, where the body produces abnormal or insufficient hemoglobin.

Why It’s Done

Your healthcare provider may recommend this test if you have symptoms of blood disorders, a family history of thalassemia, or if you’re planning pregnancy and have a family history of genetic blood conditions.

How It Works

A small blood sample is taken, and genetic testing identifies any mutations in the hemoglobin genes. This process involves analyzing DNA to detect the presence of specific genetic variants linked to hemoglobin disorders.

What to Expect

You’ll have a simple blood draw, similar to other routine blood tests. Results may take several days to weeks, depending on lab processing times.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Finding a hemoglobin variant mutation can confirm a diagnosis of thalassemia or other inherited blood disorders. Early detection allows for better management, support, and potential treatment planning, including genetic counseling if applicable.

Short name

Hemoglobin Variant Genetic Test

Frequently asked questions

Will this test show all types of hemoglobin disorders?
This test focuses on detecting the specific genetic mutations associated with thalassemia. Other hemoglobin-related conditions may require additional testing.
How long does it take to get results?
Results typically take 7 to 14 days, but this can vary by lab. Your healthcare provider will contact you once results are ready.
Is this test covered by insurance?
Coverage depends on your insurance plan and medical necessity. Check with your provider or insurance company to confirm coverage details before the test.
  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