Test Price
2,800 AED✅ Home Collection Available
Acetylcholine Receptor (AChR) Blocking Antibody Test in UAE | 2800 AED | 2026 DHA Guidelines
تحليل أضداد مستقبلات الأستيل كولين المُحاصِرة في الإمارات | 2800 درهم | معتمد من هيئة الصحة بدبي
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- Clinical Guidance: Telephonic Post-Test Clinical Guidance in result interpretation.
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Overview
This highly specific radioimmunoassay (RIA) test measures blocking antibodies against the acetylcholine receptor (AChR), serving as a confirmatory diagnostic tool for Myasthenia Gravis. يُستخدم هذا الاختبار الدقيق للكشف عن الأجسام المضادة المُحاصِرة لمستقبلات الأستيل كولين لتأكيد تشخيص الوهن العضلي الوبيل.
| Feature | Our Test (AChR Blocking Ab) | Alternative (AChR Binding Ab ELISA) |
|---|---|---|
| Methodology | Radioimmunoassay (RIA) | ELISA |
| Analytical Sensitivity | Gold standard for blocking antibodies, detects low titers | Higher detection limit, may miss early/weak positives |
| Turnaround Time | 2–3 weeks (specialized send-out lab) | 5–7 days typical |
| Clinical Utility in MG | Preferred for seronegative binding-antibody patients | Initial screening; may fail to detect blocking antibodies |
Physician Insight & Safety Protocol
"Dear Patient, while this test provides crucial data, final diagnosis must integrate clinical symptoms and neurological examination results. As a specialist, I always correlate serology with electromyography and bedside evaluation. Please do not interpret these results in isolation; consult your neurologist for holistic management." —Dr. PRABHAKAR REDDY, DHA License: 61713011
Exclusion Criteria & Red Flags
- Exclusion: This test is not intended for patients under 12 years without written clearance from a pediatric neurologist, in full compliance with CDS Law 2026 (Minors).
- Exclusion: Pregnant or lactating women require a dedicated specialist referral form and risk-benefit discussion before collection.
- ER Red Flag: If you experience sudden worsening of muscle weakness, difficulty swallowing (dysphagia), or shortness of breath (respiratory distress), seek emergency care immediately.
- ER Red Flag: Any fever with worsening ptosis or diplopia warrants urgent neurological evaluation.
Patient FAQ & Clinical Guidance
1. What is the purpose of an AChR blocking antibody test?
Snippet: This test detects anti-AChR blocking antibodies to aid in diagnosing Myasthenia Gravis with high specificity. يقيس هذا الاختبار الأجسام المضادة المُحاصِرة لمستقبلات الأستيل كولين لتأكيد تشخيص الوهن العضلي الوبيل. It is particularly valuable in patients who are negative for standard AChR binding antibodies, as blocking antibodies can account for up to 10% of MG cases and correlate with disease severity.
2. Why is RIA used instead of ELISA for this test?
Snippet: Radioimmunoassay offers superior analytical sensitivity for blocking antibodies, detecting low titers that ELISA may miss. يُوفِّرُ المقايسة المناعية الشعاعية حساسية تفوق ELISA للكشف عن الأجسام المضادة المُحاصِرة. RIA is the peer-reviewed standard because it directly measures functional inhibition, ensuring that subtle autoimmune activity is not overlooked—crucial for early intervention.
3. What pre-test preparation is required?
Snippet: No fasting; a red-top serum tube is collected and shipped refrigerated with a mandatory consent form. لا يتطلب صياماً؛ تُجمَع عينة المصل في أنبوب أحمر وتُرسل مبردة مع نموذج الموافقة الإلزامي. Specifically, 2 mL of serum (minimum 0.5 mL) in a plain red-top tube is needed; SST gel barrier tubes must not be used. The sample must be kept refrigerated or frozen during transport, and the duly filled Test Send Out Consent Form (Form 35) is mandatory for processing.
Regulatory Compliance: This service strictly adheres to Federal Decree-Law No. 41 of 2024 (Art. 87), UAE CDS Law 2026 provisions for minors, and the UAE Personal Data Protection Law (PDPL). All sample handling meets ISO 9001:2015 (Cert: INT/EGQ/2509DA/3139) standards.
Clinical Responsibility: results must be interpreted by a licensed DHA/MOHAP physician. Top 2026 ICD-10-CM codes utilized: G70.00 (Myasthenia gravis without exacerbation), G70.01 (Myasthenia gravis with exacerbation), Z13.828 (Encounter for screening other nervous system disorders). LOINC: 55906-3 (https://loinc.org/55906-3/).
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