Sschenckiiigaseracnc

Published: August 9, 2026Updated: August 17, 2026

This blood test detects IgA antibodies against Sporothrix schenckii fungus, used to diagnose sporotrichosis infection.

Quick summary

{"Detects IgA antibodies to Sporothrix schenckii fungus in blood","Helps diagnose sporotrichosis, a fungal skin infection","Results are reported as positive or negative","A positive result indicates current or past infection"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC: 13243-1
Short code: SPOR IgA
Synonyms: S schenckii IgA Ser-aCnc
Category: cardiac
Sample: serum
Container: Serum separator tube (SST) or red top vacuum tube
Units: N/A
Ref low: 0
Ref high: 1
Critical range: — – 10000 N/A
Fasting: false
Population: adult
Sex: all
Age range: ≥ 0 years
Method: Enzyme Immunoassay (EIA)
CPT: 86635
SNOMED: 186639003
Specimen volume: 1.0 mL minimum, 2.0 mL preferred
Stability: Room temperature: 24 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C or below): 30 days
Hemolysis max: 50
Lipemia max: 60
Icterus max: 40
TAT: 48–96 hours
Order: routine

What is this test?

The Sporothrix schenckii IgA Antibody test is a blood test that looks for IgA antibodies against the Sporothrix schenckii fungus in your serum. IgA is a type of antibody (immune protein) that your body produces in response to a fungal infection. This test helps doctors determine if you have been infected with Sporothrix schenckii, the fungus that causes sporotrichosis.

Why is it ordered?

This test is ordered when a patient has symptoms suggestive of sporotrichosis, such as a persistent skin ulcer or nodule that may have started after a minor skin injury, especially from plant material like rose thorns. It helps confirm the diagnosis when clinical features alone are not conclusive.

How is the test performed?

A healthcare provider will draw a blood sample from a vein in your arm. The blood is sent to a laboratory where it is analyzed to detect the presence of IgA antibodies against Sporothrix schenckii. The result is typically reported as positive (antibodies detected) or negative (no antibodies detected).

Reference range

Negative: < 1:8 titer; Equivocal: 1:8; Positive: > 1:8N/A

Specimen: serum

No special preparation required. Routine blood draw.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What is sporotrichosis?

Sporotrichosis is a fungal infection caused by Sporothrix schenckii, commonly found in soil, plants, and decaying vegetation. It typically enters the skin through minor cuts or scrapes, causing skin ulcers and nodules that can spread along lymph vessels.

Do I need to fast before this test?

No, fasting is not required for this blood test. You can eat and drink normally before the test.

How long does it take to get results?

Results are typically available within a few days to a week, depending on the laboratory.

Is the test painful?

You may feel a brief sting or pinch when the needle is inserted to draw blood. This is generally well-tolerated and only takes a moment.

Sources

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 17, 2026. · Read our editorial policy