MLT GlobeDengue virus RNA (RT-PCR)
Dengue · also called Dengue PCR, DENV RT-PCR
What it measures
Detects dengue virus RNA and can identify the serotype (DENV-1 to 4). It is the most specific test in the first 5 days of fever.
Specimen and preparation
- Specimen: Serum or EDTA plasma
- Tube: Gold top
- Preparation: Collect within 5 days of fever onset; keep cold and send promptly.
Reference range
| Group | Range |
|---|---|
| All | Not detected |
Reference ranges differ between laboratories, methods and populations. Always use the range printed on your own lab report.
Causes of high values
- Acute dengue viremia
- Identifies the circulating serotype for surveillance
- Positive before NS1 or antibodies in some patients
Method
Real-time RT-PCR (with serotyping)
Good to know
Viremia falls quickly after day 5, so a negative PCR later should be followed by IgM testing.
Related tests
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