Acarus Siro (D70) IgE Biomarker Testing
It measures IgE sensitization to Acarus siro (flour/storage mite) to support allergy evaluation, with easy ordering and Quest lab access via Vitals Vault.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
Acarus siro (also called a flour mite or storage mite) is a tiny mite that can live in stored grains, flour, animal feed, and other dry foods. If you react when you handle these materials—or you have year-round allergy or asthma symptoms that don’t fit a typical “pollen season” pattern—your clinician may consider testing for mite sensitization.
The Acarus Siro D70 IgE test is a blood test that looks for allergen-specific IgE antibodies to Acarus siro. It does not prove you will have symptoms every time you are exposed, but it can help connect your history and environment to a measurable immune signal.
Because allergy symptoms often overlap (dust mites, molds, pets, and workplace exposures can look similar), this result is most useful when you interpret it alongside your symptoms, timing, and other allergy tests—not as a standalone diagnosis.
Do I need a Acarus Siro D70 IgE test?
You might consider this test if you have ongoing nasal congestion, sneezing, post-nasal drip, itchy eyes, cough, or wheeze that seems worse in indoor or storage environments. It can be especially relevant if symptoms flare when you handle flour, grains, hay, animal feed, or stored foods, or if you work in baking, farming, food storage, or animal care.
This test can also be helpful when you have “dust mite–like” symptoms but standard house dust mite results do not fully explain what you’re experiencing. Storage mites can cross-react with other mites, and identifying a specific sensitization can guide practical exposure reduction steps.
You may not need this test if your symptoms are clearly seasonal and match local pollen patterns, or if your clinician is already managing your allergies effectively without needing to pinpoint a storage mite trigger.
Testing supports clinician-directed care and shared decision-making. Your result should be interpreted in the context of your symptoms, exam, and any other allergy or asthma evaluation.
This is a laboratory-developed, CLIA-validated allergen-specific IgE blood test; it supports allergy assessment but does not diagnose allergy on its own.
Lab testing
Order Acarus Siro (D70) IgE and schedule your blood draw when it works for you.
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
If you are trying to clarify whether a storage mite could be contributing to your symptoms, Vitals Vault lets you order Acarus Siro (D70) IgE testing and complete your blood draw through a national lab network.
Once your result is back, you can use PocketMD to get plain-language context for what “negative,” “low positive,” or “high positive” patterns often mean, and to map reasonable next steps to discuss with your clinician—such as adding related mite or environmental allergen tests, or planning a retest if your exposure changes.
Vitals Vault is a good fit when you want a documented lab result to bring to an allergy visit, or when you are tracking whether avoidance steps (like changing storage practices at home or work) line up with symptom improvement over time.
- Order online and complete your blood draw at a participating lab location
- PocketMD helps you turn a number into questions to ask your clinician
- Easy re-ordering if you and your clinician decide to trend results
Key benefits of Acarus Siro (D70) IgE testing
- Helps identify sensitization to a storage/flour mite that is not always included in basic allergy workups.
- Supports a clearer link between your symptom pattern and exposures like flour, grains, feed, or stored foods.
- Can guide targeted avoidance steps at home or work instead of broad, hard-to-sustain changes.
- Adds context when you have persistent “indoor allergy” symptoms but common triggers are unclear.
- Helps your clinician decide whether to expand testing to other mites or environmental allergens.
- Provides an objective baseline you can compare over time if your exposure or symptoms change.
- Pairs well with PocketMD guidance so you can interpret results in plain language before your next visit.
What is Acarus Siro (D70) IgE?
Acarus siro is a storage mite that can thrive in dry stored products such as flour, grains, and animal feed. In some people, exposure triggers allergy symptoms because the immune system has made IgE antibodies that recognize proteins from this mite.
The Acarus Siro D70 IgE test measures the amount of allergen-specific IgE in your blood directed at Acarus siro. A higher result generally means your immune system is more strongly sensitized to this allergen, although the number does not perfectly predict how severe your symptoms will be.
This is different from total IgE, which reflects overall allergic tendency and can be elevated for many reasons. Allergen-specific IgE is more targeted: it asks whether your immune system recognizes one particular trigger.
Sensitization vs. clinical allergy
A positive specific IgE result indicates sensitization, meaning your immune system has the capacity to react. Clinical allergy means you actually develop symptoms with real-world exposure. You can be sensitized without obvious symptoms, and you can have symptoms that are driven by other triggers even if this test is negative.
Why storage mites are a special case
Storage mites are often linked to occupational or household exposures that are easy to overlook, such as old flour, pantry staples stored for long periods, or animal feed. They can also overlap with house dust mite sensitivity, so a focused test can be useful when your exposure story points in that direction.
What do my Acarus Siro (D70) IgE results mean?
Low or negative Acarus Siro (D70) IgE
A low or negative result means your blood does not show meaningful IgE sensitization to Acarus siro at the time of testing. This makes storage mite allergy less likely, but it does not fully rule it out, especially if your symptoms are intermittent or your exposure is seasonal or workplace-specific. If your history strongly suggests a mite trigger, your clinician may still consider testing for other mites or using a broader environmental allergy panel.
In-range results (interpreting “normal” for specific IgE)
For allergen-specific IgE, “in range” typically means negative or below the lab’s positivity threshold. In practical terms, that usually points you toward other explanations for your symptoms, such as different allergens, irritants, infections, reflux, or non-allergic rhinitis. If you are already avoiding exposure (for example, you changed how you store flour or you are away from a workplace), your result may be lower than it would be during high exposure periods.
High or positive Acarus Siro (D70) IgE
A high or clearly positive result suggests sensitization to Acarus siro and makes it more plausible that exposure contributes to your symptoms. The most useful next step is to match the result to your real-world pattern: when symptoms happen, where you are, and what you are handling. Your clinician may recommend confirming related sensitizations (such as other mites) and focusing on exposure reduction strategies, while also treating symptoms based on severity.
Factors that influence Acarus Siro (D70) IgE
Your result can be influenced by your recent and ongoing exposure level, because sensitization patterns can shift over time. Cross-reactivity with other mite allergens can sometimes contribute to a positive result, which is why comparing results across mite tests can be helpful. Age, atopic conditions (like eczema, allergic rhinitis, or asthma), and overall allergic tendency can also affect how likely you are to have detectable specific IgE. Medications that suppress allergic symptoms generally do not “erase” IgE, but they can change how you feel, which matters when you are correlating the lab result to symptoms.
What’s included
- Acarus Siro (D70) Ige
Frequently Asked Questions
What is Acarus siro, and where are you exposed to it?
Acarus siro is a storage (flour) mite that can live in stored grains, flour, cereals, and animal feed. Exposure is more likely in pantries with older dry goods, in food storage settings, and in certain jobs such as baking, milling, farming, or animal care.
Do I need to fast for an Acarus Siro (D70) IgE blood test?
Fasting is usually not required for allergen-specific IgE testing. If you are combining this test with other labs (like metabolic or liver panels), follow the preparation instructions for the full set of tests you are ordering.
What does a positive D70 IgE result mean?
A positive result means you are sensitized to Acarus siro, meaning your immune system has IgE antibodies that recognize this mite. It increases the likelihood that exposure contributes to symptoms, but it does not prove the mite is the only cause or predict symptom severity. Your history and exposure pattern are essential for interpretation.
Can allergy medicines affect my IgE test result?
Most common allergy medicines (antihistamines, nasal steroids, inhalers) do not significantly change allergen-specific IgE levels in the short term. They can reduce symptoms, which may make it harder to correlate how you feel with exposures, but the blood test is still generally interpretable.
How is this different from a skin prick allergy test?
This is a blood test that measures allergen-specific IgE in serum, while skin testing measures an immediate skin reaction to an allergen extract. Blood testing can be convenient when you cannot stop certain medications, have skin conditions, or prefer a blood draw. Skin testing can sometimes provide faster, in-office results; your clinician can help choose the best approach.
When should I retest Acarus Siro IgE?
Retesting is most useful when something meaningful changes, such as a new job exposure, a move, or a sustained avoidance effort, and you and your clinician want objective data to compare. Many people wait months rather than weeks, because sensitization patterns usually do not shift quickly. Your clinician can recommend timing based on your symptoms and treatment plan.
What other tests pair well with Acarus Siro (D70) IgE?
If your result is positive or your symptoms suggest a mite trigger, your clinician may consider other mite allergens (including common house dust mites) and a broader environmental allergy evaluation. If symptoms include wheeze or shortness of breath, an asthma assessment may also be appropriate. PocketMD can help you generate a focused list of follow-up questions based on your result.