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Allergy

Allergy Test – Common Ragweed (Ambrosia)

Allergy

Allergy Test – Common Ragweed (Ambrosia)

This blood test measures IgE antibodies against ragweed pollen to confirm whether your late summer symptoms are caused by a ragweed allergy.

275 SEK

VAT-exempt medical service

  • Results in 5 working days
  • 116 sampling locations
  • No doctor's referral needed
  • Sample: Blood (venous)
  • Laboratory: Synlab
Find a sampling location →

What does this test measure?

Ragweed pollen is a common trigger of late summer allergies, blooming from July to September. Symptoms typically worsen toward the end of the pollen season, especially in August and September. This IgE blood test helps identify whether ragweed is the cause of your late-season allergy symptoms.

The test is especially relevant if you experience itching or sneezing in late summer, nasal congestion or runny nose after being outdoors, worsening allergy symptoms after the main pollen season, or asthma-like symptoms during this time.

What a high value can mean

High IgE levels suggest an allergy to ragweed. Symptoms often include itching, sneezing, nasal congestion, and in some cases asthma, especially in August and September.

What a low value can mean

Low IgE levels make ragweed allergy less likely, but your full allergy profile should be considered, including other late-season pollen and mould allergens.

Read more about this marker →

Associated symptoms

  • Sneezing and itching in late summer
  • Nasal congestion or runny nose
  • Itchy or watery eyes
  • Coughing or throat irritation
  • Asthma symptoms in August or September

Who should consider this test

  • People with late summer allergy symptoms (August-September)
  • Those whose symptoms worsen after the main grass and tree pollen seasons
  • Individuals considering allergy immunotherapy
  • Anyone wanting to confirm a ragweed allergy for better treatment planning

Before your appointment

No special preparation is required. No fasting needed. Bring your ID to the sampling location. Bring valid ID to your appointment.

  • Bring photo ID to the sampling location.
  • You do not need a doctor's referral — your referral is issued when you order.
  • Tell the staff which test you have ordered if they ask.

How it works

  1. 1

    Order your test

    Choose your test and pay online. Your lab referral is created straight away.

  2. 2

    Give your sample

    Visit any of our partner sampling locations. No appointment needed at most of them.

  3. 3

    The lab analyses it

    Your sample is analysed at an accredited Swedish laboratory.

  4. 4

    Get your results

    Your values appear in your account with reference ranges and an explanation of each marker.

Good to know

Is ragweed common in Sweden?

Ragweed is becoming more common in Sweden due to climate change. While not as widespread as in continental Europe or North America, it is increasingly relevant for late-season allergy sufferers.

When does ragweed pollen season peak?

Ragweed pollen season runs from July to September, with peak levels typically in August and September.

Can ragweed allergy cause food cross-reactions?

Yes. Some people with ragweed allergy experience oral allergy syndrome when eating melons, bananas, or chamomile tea due to protein cross-reactivity.