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Diagnosing Urticaria: What Tests Reveal About Your Hives
Published: Aug 05, 2024
Diagnosing urticaria involves understanding the symptoms and using specific tests. Discover what doctors look for and how they identify this skin condition.
The Role of History and Examination
Diagnosing urticaria starts with a thorough medical history and physical examination. Doctors look for characteristic skin lesions and ask about recent exposures to possible triggers. A detailed review helps narrow down potential causes and the need for further tests.
When to Test Further
While many cases of urticaria don't require testing, some situations call for it. If a specific trigger is suspected, tests like allergen-specific IgE blood tests can be useful. Persistent symptoms may prompt more extensive evaluations to rule out underlying systemic disorders.
Interpreting Allergy Tests
Allergy tests can identify specific triggers when exposure is suspected. Positive results suggest a likely allergy, while negative results don't completely rule it out. Consulting with an allergist can help interpret these results accurately.
Frequently Asked Questions
Most cases don't need testing unless symptoms persist or a trigger is suspected.
Allergen-specific IgE blood tests can help identify triggers.
Positive results are suggestive, but negative results don't exclude allergies.
See an allergist if you suspect an allergy is causing your hives.
Key Takeaways
Accurate diagnosis of urticaria relies on history, examination, and sometimes targeted tests.
References
- Kaplan AP. Urticaria and angioedema. Middleton's Allergy: Principles and practice, 7th ed.
- Ying S, Kikuchi Y, Meng Q, et al. Cytokines in chronic urticaria.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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