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Cryoglobulin Profile (Screening)

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

This test measures proteins in your blood that may form clumps (cryoglobulins) when cooled, which can cause symptoms like fatigue, joint pain, or swelling. Cryoglobulins are often linked to conditions like lupus or infections.

Quick summary

["A simple blood test to check for abnormal protein clumps that may indicate underlying health concerns."]

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

Key facts at a glance

LOINC
29746-5
Short code
Cryoglob Ser Ql 3D Inc
Synonyms
Cryoglob Ser Ql 3D Inc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
d-deg-c-incubation
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 Is a Cryoglobulin Profile Used For?

Doctors may order this test if you have symptoms like unexplained fevers, skin rashes, joint pain, or fatigue, especially if you have a history of autoimmune diseases or infections. It can also help diagnose conditions like mixed cryoglobulinemia, which involves immune system dysfunction.

How Is the Test Performed?

A blood sample is drawn from a vein, usually in your arm. The blood is then tested in a lab to detect the presence of cryoglobulins, which appear when the sample is cooled.

What Are Common Symptoms to Watch For?

Symptoms like cold sensitivity, numbness, skin ulcers, or unexplained fatigue may prompt a cryoglobulin screen. These signs can sometimes appear alongside other tests for autoimmune or infectious diseases.

How Does This Test Relate to Other Blood Tests?

Cryoglobulin screening is often done alongside other tests, such as complete blood count (CBC) or rheumatoid factor tests, to help diagnose conditions like lupus, hepatitis, or certain infections. Results may guide further testing or treatment.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Cryoglobulin Screen

Frequently asked questions

What Does a Positive Result Mean?
A positive result suggests the presence of cryoglobulins, which may indicate an underlying condition like autoimmune disease or infection. Your doctor will discuss next steps, which could include additional testing or monitoring.
Will I Need Follow-Up Tests?
Yes, if your results are abnormal, your doctor may recommend further testing, such as a confirmatory cryoglobulin assay or evaluation of your symptoms and medical history to determine the cause.
Can Diet or Lifestyle Changes Help?
While diet or lifestyle changes alone won’t treat cryoglobulinemia, managing conditions like diabetes or infections may help reduce symptoms. Always follow your doctor’s advice for personalized care.
  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