Mountain West · Hexamethylene Diisocyanate (HDI) Allergy Test – Chemical
Hexamethylene Diisocyanate (HDI) Allergy Test – Chemical in Colorado
Below is a plain-language overview of the hexamethylene diisocyanate (hdi) allergy test – chemical. This blood test checks for allergic antibodies to hexamethylene diisocyanate (HDI), a chemical used in industrial coatings and foams. It can help identify sensitivity after exposure.
Lab requirements in Colorado
Here is what you need before ordering and completing the Hexamethylene Diisocyanate (HDI) Allergy Test – Chemical in CO. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Fasting is required for this test — follow the collection lab's instructions.
- Preparation
- No special preparation is usually required, but you should follow the specific instructions provided by the collection lab or your healthcare provider. This may include avoiding certain…
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
The HDI allergy test measures specific IgE antibodies in your blood that react to hexamethylene diisocyanate. It is a type of allergy blood test, not a skin test, and is used to assess sensitization to this isocyanate compound.
What it measures
- Specific IgE to hexamethylene diisocyanate (HDI) — Reflects the presence of allergic antibodies directed against HDI.
What the test involves
A healthcare professional collects a small sample of blood from a vein in your arm using a standard blood draw. The sample is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this test if you have symptoms such as asthma, skin rash, or nasal irritation after working with isocyanates or HDI-containing products. It is typically used as part of an evaluation for occupational allergy or exposure-related breathing problems.
Preparation
No special preparation is usually required, but you should follow the specific instructions provided by the collection lab or your healthcare provider. This may include avoiding certain medications or fasting, depending on the lab's protocol.
How results are reported
Results are reported as a quantitative level of specific IgE antibodies, often alongside a reference range. Reference ranges can vary between laboratories, so your results should be interpreted by your healthcare provider in the context of your symptoms and exposure history.
Before you go
- Whether any medications you take could affect the test results
- If fasting or other preparation is required before the blood draw
- How and when you will receive your test results
Cities
Hexamethylene Diisocyanate (HDI) Allergy Test – Chemical in Colorado communities
Choose your city for local context and to order this test.