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**Overview**: Allergy Non-Vegetarian 2 Panel**Introduction**: The Allergy Non-Vegetarian 2 Panel is a diagnostic tool designed to screen for extended non-vegetarian food allergies using serum samples. In India, seafood and poultry sensitization is notable in coastal, urban, and increasingly non-vegetarian households (fish ~5-15 percent, shellfish like shrimp/crab/lobster lower but rising with dietary shifts and restaurant consumption). Clinical allergy remains low overall but significant in sensitized individuals, with symptoms including urticaria, angioedema, gastrointestinal distress, oral itching, or anaphylaxis. High morbidity from underdiagnosis in non-veg consuming families, limited access to testing in rural/coastal areas, and cultural dietary variations leading to delayed recognition. Per immunology practices aligned with ICMR guidelines, the test employs immunoassay for detailed parameter analysis over 1-2 days with high sensitivity and specificity, valuable for screening in suspected cases with recurrent symptoms after non-veg meals. This diagnostic falls under allergy screening and targets individuals with suspected non-vegetarian food allergies, addressing accurate detection to guide safe dietary choices and prevent severe reactions. With morbidity elevated due to underdiagnosis in diverse dietary populations, the test supports public health efforts by enabling precise identification, facilitating management, and reducing risks such as anaphylaxis or nutritional imbalance from avoidance. Its serum-based approach ensures reliable detection in India's varied dietary and laboratory settings.**Other Names**: Non-Veg Pnl 2.**FDA Status**: FDA approved, CLIA certified for immunology, compliant with 2025 standards.**Historical Milestone**: Expanded with specific IgE testing; in India, relevance with increasing non-vegetarian food consumption in urban diets.**Purpose**: The test screens for 6 parameters including chicken IgE to guide non-vegetarian allergy assessment, identify specific triggers, and inform management strategies.**Test Parameters**: 1. Chicken IgE, 2. Fish IgE, 3. Shrimp IgE, 4. Crab IgE, 5. Lobster IgE, 6. Total IgE.**Pretest Condition**: No fasting required; patients should report skin, gastrointestinal, or respiratory symptoms after consuming chicken, fish, shrimp, crab, or lobster.**Specimen**: 3 mL serum in 1 SST, transported within specified times to maintain sample viability.**Sample Stability at Room Temperature**: 8 hours with proper handling to preserve analyte integrity, ensuring reliable test performance.**Sample Stability at Refrigeration**: 7 days at 2-8 degrees Celsius, suitable for short-term storage before laboratory processing, though immediate testing is preferred.**Sample Stability at Frozen**: 6 months at -20 degrees Celsius, allowing long-term storage for retesting, though freezing may affect some analytes.**Medical History**: Patients should provide details on symptom timing after non-veg meals, frequency of reactions, dietary habits, family allergy history, or previous anaphylaxis.**Consent**: Written informed consent is required, detailing the test's purpose, potential risks of untreated allergies including anaphylaxis, benefits of early detection, and minimal discomfort from venipuncture.**Procedural Considerations**: The test involves sample processing using immunoassay by trained personnel to ensure sterile technique, avoid hemolysis, and interpret results within 1-2 days using provided controls. Laboratories must maintain a controlled environment, adhere to quality assurance protocols, and store kits according to manufacturer specifications to ensure reliability.**Factors Affecting Result Accuracy**: Delays beyond stability periods, improper storage conditions, hemolysis, or cross-reactivity can affect results. Correlation with clinical evaluation or additional testing is recommended to confirm findings.**Clinical Significance**: Abnormal results indicate possible non-vegetarian sensitization, necessitating further investigation like specialist consultation or additional testing. Normal results may require follow-up if symptoms persist.**Specialist Consultation**: Allergists should be consulted for case management, dietary planning, and coordination with health programs.**Additional Supporting Tests**: Oral food challenge for confirmation.**Test Limitations**: The test may produce false negatives in non-IgE mediated reactions or false positives in sensitization without clinical allergy, requiring a comprehensive diagnostic approach that includes clinical correlation.**References**: Indian Journal of Allergy Asthma Immunology 2024, Food Allergen Studies India 2023. |
