# Phthalic Anhydride

> This test measures the level of antibodies in your blood that react to phthalic anhydride, a chemical commonly used in the manufacturing of plastics and resins. It helps show whether your immune system has developed a sensitivity to this substance, which can cause breathing problems or skin irritation in exposed workers.

- Labcorp code: 602667
- Category: [Allergies & Sensitivities](https://picardo.health/labs/tests/allergies-sensitivities.md)
- Sample: blood
- Labcorp turnaround: 3–5 days
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=602667&ref=assistant

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.