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Acremonium-Specific IgG Antibody, Qualitative

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

A qualitative blood test that detects IgG antibodies directed against Acremonium, a type of mold.

Quick summary

["A positive result indicates prior exposure to Acremonium mold but does not by itself confirm active infection or disease."]

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

Key facts at a glance

LOINC
44829-0
Short code
Deprecated Acremonium IgG RAST Ql
Synonyms
Deprecated Acremonium IgG RAST Ql
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
84484
SNOMED
302774002
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 this test?

This test checks a blood sample for IgG antibodies against Acremonium, a mold that can be found indoors. The result is reported as positive or negative.

Why might I need this test?

It may be used when a healthcare professional is evaluating possible mold exposure or unexplained respiratory or allergy-like symptoms after exposure to damp or moldy environments.

How is the test performed?

A laboratory uses the patient's blood sample to look for Acremonium-specific IgG antibodies. The result is qualitative, meaning it reports whether the antibodies were detected rather than providing a specific concentration.

How do I prepare for the test?

No special preparation is usually required for a routine antibody blood test. Follow any instructions from the laboratory and tell your healthcare professional about relevant mold exposures, allergies, immune conditions, or immunosuppressive medicines.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A positive result means that IgG antibodies to Acremonium were detected, suggesting previous exposure to this mold. It does not establish the cause of current symptoms, identify the location or severity of exposure, or prove that an active fungal infection is present. Results should be interpreted with symptoms, exposure history, and other clinical findings.

Short name

Acremonium IgG antibody

Frequently asked questions

What does a positive result mean?
It indicates that the blood contains IgG antibodies to Acremonium, which generally suggests prior exposure. It may support an evaluation of compatible symptoms, but it is not a stand-alone diagnosis.
Does a positive result mean I have a mold infection?
No. Antibodies can remain after an earlier exposure, so a positive result alone does not show active infection, tissue damage, or ongoing symptoms.
What should I do with my result?
Discuss the result with your healthcare professional in the context of your symptoms and exposure history. The result may be useful alongside other allergy, infectious-disease, or environmental assessments.
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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