Helminthosporium Halodes
Below is a plain-language overview of the helminthosporium halodes. This blood test checks for allergic sensitization to Helminthosporium halodes, a mold that grows on plants and in soil. It is usually ordered when a person has ongoing allergy or asthma symptoms and a clinician wants to see whether this mold may be a trigger.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
This blood test checks for allergic sensitization to Helminthosporium halodes, a mold that grows on plants and in soil. It is usually ordered when a person has ongoing allergy or asthma symptoms and a clinician wants to see whether this mold may be a trigger.
What it measures
- Specific IgE antibody to Helminthosporium halodes — The main marker; it shows whether your immune system has made antibodies that react to this mold.
- Total IgE — Sometimes measured alongside to give context, though it does not identify a specific trigger.
- Other mold-specific IgE tests — May be ordered together to compare reactions to several molds.
- Allergen panel components — If part of a broader panel, results for related allergens may be reported together.
Who it is for
A primary care clinician, allergist, or pulmonologist typically orders this test. It is most often used for people with persistent nasal, eye, or breathing symptoms that may worsen in damp or moldy environments.
Preparation
No fasting or special preparation is needed. Tell your clinician about any antihistamines or other medicines you take, because some can affect allergy testing.
Results and what they mean
Results are usually reported as a number or class level for specific IgE, along with a reference range from the lab. A higher result suggests sensitization but does not by itself confirm that this mold causes your symptoms. Only a clinician can interpret the result with your history and exam; this is general information, not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the helminthosporium halodes is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Does a positive result mean I am allergic to this mold?
It means your immune system has made antibodies to it. Whether that causes symptoms depends on your history and exposure, so your clinician will interpret it with you.
How long do results take?
Most labs return results within 1 to 3 business days, though timing can vary.
Do I need to fast?
No. Fasting is not required for this test.
Can I take my allergy medicine before the test?
Ask your clinician. Some antihistamines may need to be stopped briefly, but do not change medicines without checking first.