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Updated: Jan 19, 2026

A Practical Guide to Phylogenetics for Nonexperts
Published on: February 5, 2014
Idiopathic anaphylaxis yardstick: Practical recommendations for clinical practice.
Melody C Carter1, Cem Akin2, Mariana C Castells3
1National Institutes of Health, Bethesda, Maryland.
Idiopathic anaphylaxis (IA) presents without a known trigger, mimicking regular anaphylaxis symptoms. This study offers practical diagnostic and management recommendations for IA due to limited current guidance.
Area of Science:
- Allergy and Immunology
- Clinical Medicine
Background:
- Anaphylaxis without a clear trigger is termed idiopathic anaphylaxis (IA).
- IA symptoms are indistinguishable from triggered anaphylaxis, affecting multiple body systems.
- IA poses diagnostic and management challenges for patients and clinicians.
Purpose of the Study:
- To provide practical recommendations for diagnosing and managing idiopathic anaphylaxis.
- To address the lack of specific guidance in current anaphylaxis protocols for IA.
- To synthesize existing data and clinical expertise for IA patient care.
Main Methods:
- Literature review of published data on anaphylaxis and IA.
- Consolidation of clinical experience from expert authors.
- Development of practical recommendations based on evidence and experience.
Main Results:
- The study outlines diagnostic considerations for identifying IA.
- It proposes management strategies tailored to the unpredictable nature of IA.
- Recommendations cover both acute and long-term care aspects.
Conclusions:
- Idiopathic anaphylaxis requires specific diagnostic and management approaches.
- The Idiopathic Anaphylaxis Yardstick provides essential guidance for healthcare providers.
- Improved understanding and management can alleviate patient frustration and improve outcomes.
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