LabInformationLab tests, explained

Pigweed Allergy Symptoms and Testing in California

Below is a plain-language overview of the pigweed allergy symptoms and testing. A pigweed allergy blood test checks for antibodies your immune system makes against pigweed pollen, a common weed allergen. It is ordered when you have allergy symptoms like sneezing, runny nose, or itchy eyes and your clinician wants to confirm whether pigweed is a trigger. California residents in Pacific can request the pigweed allergy symptoms and testing online and choose a convenient collection point.

Sample type
blood
Category
Allergy
Turnaround
1-3 business days
Price
$49
Referral
Not required

A pigweed allergy blood test checks for antibodies your immune system makes against pigweed pollen, a common weed allergen. It is ordered when you have allergy symptoms like sneezing, runny nose, or itchy eyes and your clinician wants to confirm whether pigweed is a trigger.

What it measures

  • Specific IgE to pigweed pollen — Shows if your immune system has made allergic antibodies to pigweed.
  • Total IgE — A general measure of allergic tendency, sometimes included for context.
  • Specific IgE to other weed pollens — May be tested together to see if you react to similar weeds like ragweed or sagebrush.

Who it is for

A primary care clinician or allergist typically orders this test for people with seasonal allergy symptoms that may be caused by weed pollen.

Preparation

No fasting or special preparation is needed. The blood sample can be drawn at any time of day.

Results and what they mean

Results are usually reported as a number or class that indicates how much specific IgE was found. Your clinician interprets these results along with your symptoms and history to decide what they mean for you. This is general information only and not medical advice.

Requesting the Pigweed Allergy Symptoms and Testing in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. With coastal metros, inland towns, and rural counties with very different access to testing, it pays to schedule your collection in advance.

Frequently asked questions

What is pigweed?

Pigweed is a common weed whose pollen can trigger allergies in late summer and fall. It is also called amaranth.

Does a positive test mean I am allergic?

A positive test shows your immune system has been exposed and made antibodies, but it does not always mean you have symptoms. Your clinician will consider your symptoms too.

How long does it take to get results?

Results are typically available in 1 to 3 business days.

Can I take allergy medicine before the test?

Most allergy medicines do not affect this blood test, but check with your clinician about any medicines you take.

Pigweed Allergy Symptoms and Testing by city in California

All testing in California →   Full Pigweed Allergy Symptoms and Testing guide →