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Genetic mutation analysis for hemoglobin variants (e.g., sickle cell trait/disease)

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

This test checks for specific genetic changes in your red blood cells that may affect how hemoglobin (the protein that carries oxygen) functions. These changes can sometimes be linked to conditions like sickle cell disease or other blood disorders.

Quick summary

["Identifies genetic mutations that could impact your blood health."]

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

Key facts at a glance

LOINC
105332-1
Short code
MYH9 gene Full Mut Anl Bld
Synonyms
MYH9 gene Full Mut Anl Bld
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 is hemoglobin and why does it matter?

Hemoglobin is the protein in your red blood cells that carries oxygen from your lungs to the rest of your body. When genetic mutations alter its structure or function, it can lead to health issues like anemia or unusual blood cell shapes. This test focuses on detecting specific mutations in the genes responsible for hemoglobin production.

How is this test performed?

A small blood sample is taken from your arm. The genetic material (DNA) from your red blood cells is then analyzed to identify any mutations in the hemoglobin-related genes. The test may also involve a urine sample to check for certain metabolic byproducts linked to hemoglobin disorders.

What might this test be used for?

This test is often used in prenatal screening, newborn screening, or for diagnosing or monitoring conditions like sickle cell disease, thalassemia, or other hemoglobinopathies. It can also help determine if you carry a mutation that might affect your family members.

What are the possible results?

Results can show whether you have a normal hemoglobin gene, a single mutation (like sickle cell trait), or multiple mutations (like sickle cell disease). Some results may indicate a carrier status, while others could suggest a confirmed diagnosis of a hemoglobin disorder.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: This test plays a critical role in early detection and management of hemoglobin-related disorders. Identifying mutations early can help guide treatment options, such as hydration, pain management, or specialized care for conditions like sickle cell disease. It also helps families understand genetic risks and plan for future pregnancies.

Short name

Hemoglobin mutation screening

Frequently asked questions

Why did my doctor order this test?
Your doctor may have recommended this test if you have symptoms like fatigue, pain, or frequent infections, or if you have a family history of hemoglobin disorders. It could also be part of routine screening for newborns or pregnant individuals.
What should I expect during the test?
You’ll have a small needle inserted into your arm to draw blood, which usually takes a few minutes. If urine is also collected, you may be asked to provide a sample in a clean container. The test itself is quick, but results may take several days to weeks, depending on lab processing.
Do I need to prepare for this test?
No special preparation is needed for the blood draw, but avoid strenuous activity for 24 hours before testing. If you’re pregnant or breastfeeding, inform your doctor before the test. For urine samples, drink plenty of water the day before.
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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