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Cryoglobulins (Qualitative)

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

This test checks for abnormal proteins called cryoglobulins in your blood that may form clumps when cooled, potentially causing symptoms like fatigue, joint pain, or swelling.

Quick summary

["A cryoglobulin screen helps identify conditions linked to immune system dysfunction or infections."]

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

Key facts at a glance

LOINC
44082-6
Short code
Cryoglob IgA & IgG & IgM Ser-Imp
Synonyms
Cryoglob IgA & IgG & IgM Ser-Imp
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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

Why This Test Matters

Cryoglobulins are proteins that can clump together in cold temperatures. When they do, they may block blood flow, leading to pain, swelling, or other symptoms. This test helps doctors diagnose conditions like cryoglobulinemia, which can be caused by infections (e.g., hepatitis), certain cancers, or autoimmune diseases.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process takes about 5 minutes, and you may feel a brief pinch. If you have a blood clot disorder or are on blood thinners, let your doctor know before the test.

Possible Results and Next Steps

If the test shows abnormal cryoglobulins, your doctor may order follow-up tests, such as additional bloodwork or imaging, to determine the cause. Results may take 1–3 business days to return.

Common Causes and Conditions

Cryoglobulinemia can result from chronic infections (e.g., hepatitis B/C), autoimmune diseases (e.g., rheumatoid arthritis), or certain cancers (e.g., lymphoma). Symptoms may include fatigue, muscle aches, skin rashes, or nerve damage.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Cryoglobulin Screen

Frequently asked questions

What symptoms might trigger this test?
This test may be ordered if you have unexplained fatigue, joint pain, swelling, or skin changes (e.g., purple or red patches), especially if you have a history of infections, autoimmune diseases, or cancer.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will discuss the findings with you.
Can lifestyle changes affect this test?
No lifestyle changes are needed for this screening test. However, if you have symptoms, discuss them with your doctor before testing.
  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