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Hemoglobin (Other Blood) Analysis

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

This test measures different forms of hemoglobin or other blood components related to red blood cells, which may help identify conditions affecting blood health.

Quick summary

["Understanding your hemoglobin profile can help diagnose or monitor blood disorders."]

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

Key facts at a glance

LOINC
73984-7
Short code
Hgb Other Bld
Synonyms
Hgb Other Bld
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
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 is the protein in red blood cells that carries oxygen. This test evaluates variations or additional components of hemoglobin beyond the standard types, which can indicate genetic conditions, blood disorders, or other health issues.

Why It’s Ordered

Your healthcare provider may order this test if you have symptoms like fatigue, pale skin, unusual bruising, or if they suspect conditions such as thalassemia, sickle cell disease, or other hemoglobinopathies.

Common Conditions Linked to This Test

Conditions like thalassemia (a genetic disorder affecting hemoglobin production) or sickle cell disease (where hemoglobin takes an abnormal shape) may be detected through this test. It can also help monitor anemia or other blood-related disorders.

Sample Collection and Preparation

A blood sample is taken from a vein, usually in your arm. The sample is processed to separate components, including hemoglobin variants, for analysis.

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 Variants/Other Blood Hemoglobin

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within a few days to a week, depending on your lab’s processing schedule and any follow-up tests required.
What does an abnormal hemoglobin result mean?
An abnormal result may indicate a genetic blood disorder, anemia, or other conditions affecting red blood cells. Your healthcare provider will discuss findings in detail and recommend next steps, such as additional tests or lifestyle adjustments.
Can diet or supplements affect this test?
Dietary changes or supplements may indirectly influence hemoglobin levels, but they are less likely to directly alter this specific test for hemoglobin variants. Always follow your provider’s advice regarding dietary restrictions or supplements if prescribed.
  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