Serum or plasma concentration of Westragweed (Inula helenium) digoxin-like immunoreactive substances (DLIs)
This test measures certain substances in your blood that can resemble the effects of the heart medication digoxin, which may be found in Westragweed (Inula helenium). These substances can affect heart rhythm and should be monitored if you are taking heart medications or are exposed to this plant.
["This test helps assess potential drug interactions or toxicity from plant exposure that may mimic digoxin effects."]
Key facts at a glance
- LOINC
- 102561-8
- Short code
- West Ragweed IgE RAST
- Synonyms
- West Ragweed IgE RAST
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- rast
- CPT
- 84484
- SNOMED
- 302774002
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have a history of heart conditions, are taking heart medications like digoxin, or have been exposed to Westragweed. It is also used in cases where symptoms like irregular heartbeat or fatigue suggest possible drug interaction or toxicity.
What to Expect Before the Test
No special preparation is needed for this test. You will have a small needle inserted into your arm to draw blood. The process is quick and usually causes only minor discomfort. If you are on blood thinners, let your provider know before the test.
What the Test Results Mean
Results show the presence of substances that may affect heart function. Elevated levels could indicate exposure to Westragweed or other substances that mimic digoxin. Your provider will discuss these results with you and may recommend further action based on your symptoms and medical history.
Common Reasons for Testing
This test is particularly useful for patients with heart conditions, those taking heart medications, or individuals who have consumed Westragweed. It helps prevent overdosage or unexpected interactions that could harm your heart.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Westragweed Digoxin-like Immunoreactive Substances (DLIs)
Frequently asked questions
What does a high or low result mean?
How often should this test be done?
Can I stop taking medications if the test shows abnormal levels?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy