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Hemoglobin Electrophoresis (Qualitative or Semi-Quantitative)

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

This test helps identify abnormal hemoglobin variants, which can indicate conditions like sickle cell disease or other inherited blood disorders.

Quick summary

["This test checks for unusual hemoglobin types that may cause health problems."]

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

Key facts at a glance

LOINC
32681-9
Short code
Hgb C MFr Bld Elph
Synonyms
Hgb C MFr Bld Elph
Category
hematology
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
12
Ref high
17.5
Critical range
7 N/A – 20 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
CPT
85018
SNOMED
900000000000003004
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

Hemoglobin electrophoresis separates different types of hemoglobin based on their electrical charge. This helps detect variants that may not be detected by standard hemoglobin tests. The test may be qualitative (just identifying the presence of abnormal hemoglobin) or semi-quantitative (measuring relative amounts).

Why It’s Done

Your doctor may order this test if you have symptoms like fatigue, pain, or frequent infections, or if you have a family history of hemoglobin disorders. It’s also used to screen for conditions like sickle cell disease, thalassemia, or other inherited blood disorders.

Sample Collection

A small blood sample is taken from a vein in your arm. The blood is then processed to separate hemoglobin variants for analysis.

Test Results Interpretation

Results show the presence and relative amounts of different hemoglobin types. Abnormal patterns may indicate specific blood disorders, but interpretation requires medical expertise to link findings to potential conditions.

Reference range

Adult males: 13.5-17.5 g/dL; Females: 12.0-16.0 g/dLN/A

Specimen: whole-blood

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Hemoglobin Electrophoresis

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result suggests the presence of unusual hemoglobin types, which may point to inherited blood disorders. Your doctor will discuss findings in detail and recommend next steps, such as further testing or treatment options.
How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on lab processing times and whether confirmatory testing is needed.
Can I eat or drink before this test?
No special preparation is usually required, but follow your doctor’s instructions. Avoid caffeine or alcohol before the blood draw if advised.
  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