Casandra
Casandra Test Code QD37567Version 1 (DRAFT)
Performing Lab
Dengue Virus NS1 Antigen
Clinical Use
Order TestUse
Dengue NS1 antigen is present in serum during the acute phase of dengue virus infection, typically within days 1–9 after symptom onset. Detection of NS1 antigen allows accurate diagnosis in the early (febrile) phase, potentially before RNA or IgM detection assays become positive ([questdiagnostics.com](https://www.questdiagnostics.com/healthcare-professionals/clinical-education-center/faq/faq169?utm_source=openai)).
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (IA)
Biomarkers
NS1 antigen
ProteinNS1 Antigen Index
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1-5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.1 mL
Container
Red Top (No Additive)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 30 days |
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