Test Price
1,200 AED✅ Home Collection Available
Protein S Antigen Free Test in Dubai | 1200 AED | DHA Licensed
Executive Summary & Core Metrics
Executive Summary: This advanced coagulation test delivers 99.9% diagnostic sensitivity under ISO 9001:2015 certified processing. Enjoy VIP mobile phlebotomy and temperature-controlled cold-chain home collection with same-day results, plus direct DHA-licensed medical guidance via WhatsApp at +971 54 548 8731. Insurance billing verification is available.
Test Overview & Methodology
The Protein S Antigen Free test precisely quantifies the unbound, functionally active fraction of protein S—a natural anticoagulant that helps prevent unwanted blood clots. This test is critical for diagnosing hereditary or acquired protein S deficiency in UAE patients and is processed on fully automated immunoturbidimetric platforms for unrivalled reproducibility. The assay uses monoclonal antibody-based immunoturbidimetry to directly measure free protein S mass, avoiding interferences common with clot-based functional assays.
| Feature | Our Protein S Free Antigen Test | Closest Alternative (Protein S Activity) |
|---|---|---|
| Methodology | Immunoturbidimetry (monoclonal antibody-based) | Clot-based functional assay |
| Diagnostic Specificity | 99.9% – directly measures free protein S mass | Affected by lupus anticoagulants, heparin, or warfarin |
| Turnaround Time | Same day (sample by 11 AM) | 24–48 hours |
| Susceptibility to Interference | Low – specific monoclonal antibody binding unaffected by anticoagulants | High – heparin, warfarin, DOACs, and lupus inhibitors alter results |
Physician Insight & Safety Protocols
“This free protein S antigen test provides a direct measurement of the active anticoagulant fraction, offering superior diagnostic clarity for thrombophilia assessment. However, the result must be interpreted within the full clinical context—including family history, concurrent medications, and any acute thrombotic events. I review every case personally and provide telephonic follow-up to ensure you understand your results and the recommended next steps.”
— Dr. Ajay Singh, General Practitioner, DHA Registration ID: 36234132
Medication Advisory & Testing Precautions
⚠️ Important Medication Guidance
This test requires temporary cessation of Heparin (1 day) and Oral Anticoagulants (7 days) prior to sampling, only with prior written consent from your treating physician. Do not discontinue prescribed blood thinners on your own; abrupt withdrawal can trigger severe thrombotic events. The laboratory will verify your medication status before processing.
Exclusion Criteria & Emergency Red Flags
- Do not undergo this test if you have an acute deep vein thrombosis (DVT) or pulmonary embolism; seek immediate ER care.
- Red flags warranting emergency evaluation: sudden leg swelling or pain, chest pain, shortness of breath, or coughing up blood.
- Pregnant patients with suspected thrombophilia must be managed under high-risk obstetric care—this test alone cannot rule out pregnancy-related coagulation changes.
- Ensure the mandatory Coagulation Requisition Form (Form 15) is fully completed; missing or incomplete forms may delay processing.
Patient FAQ & Clinical Guidance
1. Why should I get the Protein S Free Antigen test instead of a standard coagulation panel?
This test directly measures free active protein S mass, revealing inherited or acquired deficiency where routine panels appear normal. A standard PT/aPTT often misses protein S deficiency, especially in patients with a family history of unexplained clots. By detecting the free, functional fraction, we provide the earliest actionable marker for thrombophilia risk stratification.
2. How do I prepare for the test, and what does the home collection service include?
Overnight fasting is preferred, and a skilled VIP phlebotomist arrives at your location with a pre-cooled transport container. Our team draws 3 mL whole blood in a blue‑top sodium citrate tube, mixes it immediately, and centrifuges double‑spun platelet‑poor plasma on‑site if needed. The sample is then frozen instantly and transported under continuous cold‑chain to the lab, guaranteeing sample integrity and same‑day reporting.
3. Can I get this test while on blood thinners, and how are the results interpreted?
Heparin and warfarin directly interfere, so temporary discontinuation under physician guidance is mandatory; results are interpreted by a DHA‑licensed practitioner. A low free protein S level may indicate hereditary deficiency or consumption due to acute thrombosis, liver disease, or pregnancy. Because the test is drug‑sensitive, we always correlate with your clinical history and provide a telephonic post‑consultation to explain your individual risk and next steps.
4. What is the difference between free protein S antigen and total protein S antigen?
Free protein S antigen measures only the unbound, functionally active fraction, while total protein S includes both free and C4b-binding protein-bound forms. The free form is the physiologically relevant anticoagulant. Measuring free antigen provides greater diagnostic accuracy for thrombophilia, as total protein S can be normal even when free levels are critically low.
UAE Regulatory & Data Privacy Adherence
Your data is protected under:
- Federal Decree-Law No. 45 of 2021 on Personal Data Protection (PDPL)
- Federal Law No. 2 of 2019 Concerning the Use of Information and Communication Technology in Health Fields
- Federal Decree-Law No. 4 of 2016 on Medical Liability
All test results are transmitted over encrypted channels, stored on UAE-based servers, and accessible only to the requesting physician and the patient. We maintain full DSRI compliance and undergo annual ISO 27001 certification reviews to safeguard your medical information.
Clinical & Logistical Metadata
| Test Name | Protein S Antigen Free |
| Price (AED) | 1200 AED |
| Turnaround Time | Same day (sample received by 11 AM) |
| Sample Type / Matrix | Whole Blood (3 mL, sodium citrate) / Platelet-Poor Plasma |
| Methodology Used | Immunoturbidimetry (monoclonal antibody-based) |
| ICD-10-CM Code | D68.5 (Primary hypercoagulable state) |
| LOINC Code | 57029-3 |
| DHA Facility License & Laboratory Address | DHA License No. 1143 | Premises 105, Floor 1, Building 33, Dubai Healthcare City, Dubai, UAE | DNA Labs UAE |
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