C8 Complement Test in UAE | 1,800 AED | DHA Licensed Laboratory

Executive Summary & Core Metrics

The C8 Complement Test is a specialized quantitative immunoassay that measures the eighth component of the complement cascade. This test is essential for diagnosing hereditary and acquired complement deficiencies that increase susceptibility to recurrent Neisserial infections. Performed under ISO 9001:2015 accredited processes at DNA Labs UAE, the assay delivers 99.9% diagnostic sensitivity for C8 deficiency profiling. The test requires a 2 mL serum specimen collected via SST tube and processed using Radial Immunodiffusion (RID) — the gold standard methodology for complement protein quantification. Results are released within 2–3 weeks following the monthly batch cut-off on the 7th.

Accuracy Guarantee: 99.9% Diagnostic Sensitivity via ISO 9001:2015 Accredited Processing.
Premium Logistics: VIP Mobile Phlebotomy & Temperature-Controlled Cold-Chain Home Collection (Available daily from 8 AM to 11 PM). A duly completed Test Send Out Consent Form (Form 35) is mandatory.
Clinical Guidance: Telephonic Post-Test Clinical Guidance in result interpretation by a DHA-licensed General Practitioner.
Insurance: Direct Billing Verification via WhatsApp +971 54 548 8731.

Test Overview & Methodology

The complement system comprises nine major proteins (C1–C9) that form a critical enzymatic cascade driving opsonisation, chemotaxis, and membrane attack complex (MAC) formation. C8 is a key component of the MAC; its deficiency disrupts terminal complement function and markedly increases the risk of disseminated Neisseria meningitidis and Neisseria gonorrhoeae infections. The C8 Complement Test employs Radial Immunodiffusion (RID), a quantitative technique in which serum diffuses through an agarose gel containing anti-C8 antibodies. The resulting precipitin ring diameter is measured against calibrated standards to determine absolute C8 protein concentration. RID offers high specificity for C8 quantification and remains the reference method for complement component analysis.

Feature	Our Test (C8 Complement, RID)	Alternative (ELISA/Nephelometry)
Methodology	Radial Immunodiffusion (RID) – Gold Standard for C8	Enzyme-Linked Immunosorbent Assay (ELISA) or Nephelometry
Turnaround Time	2–3 weeks (batch processing by 7th of the month)	3–5 days (in-house rapid kits)
Diagnostic Accuracy	99.9% sensitivity for quantitative C8 deficiency profiling	Variable; often used for screening, may lack complement-specific precision
Regulatory Accreditation	ISO 9001:2015, DHA-compliant, UAE PDPL aligned	May not hold all UAE-specific compliance certifications

Physician Insight & Safety Protocols

“As a General Practitioner with clinical focus on immunological disorders, I emphasise that C8 complement levels must be interpreted alongside the patient’s infection history, vaccination status, and comprehensive immunological panel results. An isolated low or absent C8 level strongly suggests a hereditary terminal complement deficiency that significantly elevates the risk for recurrent Neisserial infections. Early identification allows for targeted prophylactic vaccination, antibiotic stewardship, and timely referral to a clinical immunologist for long-term management.” — Dr. Ajay Singh, General Practitioner, DHA Registration ID: 36234132

Advisory: Medication & Clinical Precautions

Do not discontinue or alter any prescribed immunosuppressant, corticosteroid, or immunomodulatory therapy without consulting your treating physician. Such medications can significantly influence complement protein levels and may confound test interpretation. Always inform your phlebotomist and referring doctor about all current medications, including over-the-counter supplements, before sample collection.

Exclusion Criteria & ER Red Flags

Exclusion Criteria: Recent blood transfusion (within 4 weeks), active acute infection with fever exceeding 38.5°C, known sample haemolysis, or improper cold-chain storage during transport. These conditions invalidate results and require rescheduling.
Emergency Red Flags: Sudden severe headache, purpuric rash, neck stiffness, photophobia, altered consciousness, or any signs suggestive of meningococcal sepsis or meningitis — seek immediate emergency medical care. Complement testing should not delay urgent clinical intervention.

Patient FAQ & Clinical Guidance

1. What is the purpose of a C8 complement test?

This test quantifies the C8 complement protein concentration in your blood serum to identify hereditary or acquired complement deficiencies. A low or absent C8 level indicates a defect in the terminal complement pathway, which increases susceptibility to recurrent infections, particularly those caused by Neisseria meningitidis and Neisseria gonorrhoeae. The result aids your physician in diagnosing primary immunodeficiency and guiding preventive care.

2. How should I prepare for the C8 test and what sample is required?

No special dietary or medication preparation is required. A 2 mL blood sample is collected into a Serum Separator Tube (SST) via standard venipuncture. The specimen must be kept refrigerated or frozen and transported under temperature-controlled cold-chain conditions. A completed Test Send Out Consent Form (Form 35) is mandatory. VIP Mobile Phlebotomy at your home is available daily from 8 AM to 11 PM.

3. What do abnormal C8 results mean for my health?

A significantly low or undetectable C8 level suggests a hereditary terminal complement deficiency. This condition requires lifelong monitoring, prophylactic vaccinations against meningococcal serogroups A, C, W, Y, and B, and prompt antibiotic treatment for suspected infections. Your physician may refer you to a clinical immunologist for comprehensive management. Isolated C8 deficiency is rare but carries a high risk of severe Neisserial disease if undiagnosed.

UAE Regulatory & Data Privacy Adherence

DNA Labs UAE operates in full compliance with the UAE Federal Decree-Law No. 45 of 2021 on Personal Data Protection (PDPL), ensuring that all patient health information is collected, stored, processed, and transmitted with the highest standards of confidentiality and security. Our laboratory systems also adhere to Federal Law No. 2 of 2019 Concerning the Use of Information and Communication Technology in Health Fields, which governs the digital handling of electronic medical records and telemedicine interactions. Clinical testing and patient consent protocols are conducted in accordance with Federal Decree-Law No. 4 of 2016 on Medical Liability, safeguarding patient rights throughout the diagnostic journey. Our DHA Facility License (No. 1143) and ISO 9001:2015 accreditation (Cert: INT/EGQ/2509DA/3139) further reinforce our commitment to quality and regulatory excellence.

Clinical & Logistical Metadata

Test Name	C8 Complement Test (Radial Immunodiffusion)
Price (AED)	1,800 AED
Turnaround Time	2–3 weeks (monthly batch cut-off: 7th of the month)
Sample Type / Matrix	Serum (SST Tube, 2 mL) — VIP Mobile Phlebotomy & Temperature-Controlled Cold-Chain Home Collection available
Methodology Used	Radial Immunodiffusion (RID)
ICD-10-CM Code	D84.1
LOINC Code	4475-8
DHA Facility License & Laboratory Address	License No. 1143 — Premises 105, Floor 1, Building 33, Dubai Healthcare City, Dubai, UAE