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Genetic analysis of hemoglobin variants (qualitative, serum/plasma-based probe)

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

This test checks for different types of hemoglobin in your blood, which can help identify genetic conditions like sickle cell disease or other blood disorders.

Quick summary

["This test helps diagnose inherited blood disorders by detecting unusual hemoglobin forms."]

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

Key facts at a glance

LOINC
55244-8
Short code
HPFH-6 gene Bld Ql
Synonyms
HPFH-6 gene Bld Ql
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 Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like fatigue, pain, or if you have a family history of blood disorders. It’s also used in newborn screening or before certain medical procedures.

What to Expect Before the Test

No special preparation is needed. A simple blood draw from your arm will be collected, similar to other routine blood tests.

What the Results Mean

Results show whether your hemoglobin contains any abnormal variants. A positive result may indicate a genetic condition requiring further medical evaluation.

Common Conditions Linked to This Test

Abnormal hemoglobin variants are often linked to conditions like sickle cell disease, thalassemia, or other inherited blood disorders that affect oxygen transport in the body.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Hemoglobin variant screening

Frequently asked questions

What does a positive result mean for my health?
A positive result suggests the presence of abnormal hemoglobin variants, which may indicate a genetic blood disorder. Your doctor will discuss next steps, such as further testing or monitoring, based on your symptoms and family history.
How often should I get this test?
The frequency depends on your medical needs. Your healthcare provider will determine if regular testing is necessary, especially if you have a family history of blood disorders or specific symptoms.
Can diet or lifestyle changes affect this test?
Diet or lifestyle changes typically do not impact this genetic test directly, as it analyzes blood hemoglobin composition. However, maintaining overall health can support your body’s blood function.
  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