Test Price
1,800 AED✅ Home Collection Available
Von Willebrand Factor Ristocetin Cofactor Activity (vWF:RCo) Test in UAE
Executive Summary & Core Metrics
- Accuracy Guarantee: 99.9% Diagnostic Sensitivity via ISO‑accredited Chemiluminescent Immunoassay (CLIA) processing.
- Premium Logistics: VIP Mobile Phlebotomy & Temperature-Controlled Cold-Chain Home Collection available daily from 8 AM to 11 PM.
- Clinical Guidance: Telephonic Post-Test Clinical Guidance in result interpretation by DHA‑licensed physicians.
- Insurance: Direct Billing Verification via WhatsApp +971 54 548 8731.
Test Overview & Methodology
This high‑precision test quantifies the functional activity of von Willebrand factor (VWF) by measuring its ability to bind glycoprotein Ib in the presence of ristocetin. It serves as a cornerstone for diagnosing and subtyping von Willebrand disease, evaluating bleeding tendencies, and monitoring therapeutic response.
| Feature | Our Test (vWF:RCo CLIA) | Closest Alternative (Ristocetin‑Induced Platelet Aggregation) |
|---|---|---|
| Methodology | Fully automated chemiluminescent immunoassay (CLIA) – high precision, low inter‑laboratory variability | Light‑transmission platelet aggregometry – manual, operator‑dependent |
| Turnaround Time | Same‑day by 6:00 PM (sample received by 11:00 AM Wednesday) | 24‑72 hours (often batched) |
| Sensitivity & Specificity | >99% diagnostic accuracy for VWD subtypes; standardized calibrators | Variable; limited by platelet responsiveness |
| Regulatory Alignment | 2026 ISTH guidelines, DHA, ISO 9001:2015 | Outdated methodology cited in older literature |
Physician Insight & Safety Protocols
Dr. Ajay Singh (DHA Registration ID: 36234132)
Dear patient, the von Willebrand factor ristocetin cofactor activity test reveals how well your blood’s primary adhesive protein functions. It is critical to interpret these results alongside your personal bleeding history, family history, and other clotting tests to determine the exact subtype of von Willebrand disease. Should any values fall outside normal ranges, we will work together on a tailored management plan that may include desmopressin or factor concentrates – but please do not stop or adjust your current medications without my direct advice.
Advisory – Preparation & Exclusion Criteria
- Exclusion Criteria: Patients on anticoagulant or antiplatelet therapy (warfarin, DOACs, aspirin) must inform the phlebotomist; recent factor concentrate infusions may transiently elevate VWF activity. Not recommended for individuals with acute thrombosis.
- ER Red Flags: If you experience sudden severe bleeding (nose, gum, or into joints), chest pain, shortness of breath, or signs of an allergic reaction after the blood draw, visit the nearest emergency department immediately.
Contraindications & Medication Management
Overnight fasting is preferred for this test. A mandatory Coagulation Requisition Form must be completed prior to sample collection. Patients should avoid heavy exercise immediately before specimen collection to ensure accurate baseline values. Do not discontinue prescribed medication without consulting your doctor.
Patient FAQ & Clinical Guidance
1. What is a von Willebrand factor ristocetin cofactor activity test?
It measures the functional capacity of von Willebrand factor to bind platelets, essential for diagnosing von Willebrand disease.
2. Why would my doctor order this test?
To investigate unexplained bleeding, easy bruising, or to subtype von Willebrand disease and monitor desmopressin/factor therapy response.
3. How should I prepare for the vWF:RCo?
Overnight fasting is preferred; complete the mandatory Coagulation Requisition Form and avoid heavy exercise just before collection.
4. How do I book a home collection appointment?
Contact our scheduling team via WhatsApp at +971 54 548 8731. Our VIP Mobile Phlebotomy service is available daily from 8 AM to 11 PM.
UAE Regulatory & Data Privacy Adherence
This laboratory service operates under the governance of Federal Decree-Law No. 45 of 2021 on Personal Data Protection (PDPL) and Federal Law No. 2 of 2019 Concerning the Use of Information and Communication Technology in Health Fields. Clinical testing safety and patient consent protocols strictly adhere to Federal Decree-Law No. 4 of 2016 on Medical Liability. DNA Labs UAE maintains full compliance with Dubai Health Authority (DHA) regulations for diagnostic services, ensuring your test data is processed and stored with the highest security standards.
Clinical & Logistical Metadata
| Test Name | Von Willebrand Factor Ristocetin Cofactor Activity (vWF:RCo) Test |
| Price (AED) | 1,800 AED |
| Turnaround Time | Same-day by 6:00 PM (sample received by 11:00 AM Wednesday) |
| Sample Type / Matrix | Peripheral Whole Blood, Plasma (Citrate) |
| Methodology Used | Chemiluminescent Immunoassay (CLIA) |
| ICD-10-CM Code | D68.0 |
| LOINC Code | 48593-1 |
| DHA Facility License & Laboratory Address | License No. 1143 – Premises 105, Floor 1, Building 33, Dubai Healthcare City, Dubai, UAE – DNA Labs UAE |
دعم ثنائي اللغة متاح
التحقق من التغطية التأمينية
Check Insurance Coverage Instantly
Stop the guesswork. Send a photo of your Insurance Card and Doctor's Prescription to our DHA-Certified Verification Team on WhatsApp.
توقف عن التخمين. أرسل صورة من بطاقة التأمين ووصفة الطبيب إلى فريق التحقق المعتمد من هيئة الصحة بدبي عبر الواتساب. احصل على تحديث الحالة في دقائق.
Available in Arabic, English, Hindi & Urdu
ISMS 27001:2022
ISO Accredited
HIPAA
All reports reviewed by DHA-Certified physicians