Dengue IgM (Rapid)
Report in 24Hrs
At Home
Details
Detects Immunoglobulin M (IgM) antibodies produced in response to a recent dengue virus infection
₹249₹300
17% OFF
1000+ Booked this Test
🧪 Dengue IgM – Rapid Test
📌 What is it?
The Dengue IgM Rapid Test is a point-of-care lateral flow immunoassay designed to detect IgM antibodies against the dengue virus in blood, serum, or plasma. It provides qualitative results and is typically used for quick screening in clinical or field settings.
🧠 What Does It Detect?
- IgM (Immunoglobulin M):
These are the first antibodies to appear in the blood following a dengue infection.- Typically appear: 4–5 days after onset of symptoms
- Peak: Around day 7
- Decline: Within 2–3 months
⏱️ When is it Useful?
Days Since Symptoms Start | Preferred Test |
|---|---|
0–5 days | NS1 Antigen, Dengue PCR (RNA) |
4–14 days | Dengue IgM (Rapid or ELISA) |
>7 days | Dengue IgG (for past infection) |
🔬 Test Details
Parameter | Details |
|---|---|
Sample Required | Whole Blood / Serum / Plasma |
Method | Lateral Flow Immunoassay (Rapid Card) |
Fasting Required | ❌ Not Required |
Turnaround Time | 15–20 minutes |
Result Type | Qualitative (Positive / Negative) |
Setting | Clinic, OPD, Field camp, Emergency setups |
📊 Result Interpretation
Result | Meaning |
|---|---|
IgM Positive | Recent or current dengue infection |
Negative | No IgM detected – could be early-stage or no infection |
Weak Line | May indicate low antibody titer; confirm with ELISA or PCR |
🧪 Complementary Tests to Run
Test | Purpose |
|---|---|
NS1 Antigen Test | Detects viral protein early (Day 0–5) |
Dengue IgG (Rapid or ELISA) | Differentiates between primary and secondary infections |
CBC (Platelet Count) | Monitor for thrombocytopenia |
LFT (Liver Function Test) | Check for hepatic involvement |
CRP / Procalcitonin | Rule out bacterial co-infection |
⚠️ Limitations
- Less sensitive than ELISA or CLIA-based tests
- False negatives are common in early or late stages
- Cannot differentiate between primary and secondary dengue
- Subjective interpretation of weak lines
- Cross-reactivity with other flaviviruses (e.g., Zika, Yellow fever)
✅ Quick Summary Table
Aspect | Details |
|---|---|
Type | Rapid Lateral Flow Assay |
Detects | Dengue-specific IgM antibodies |
Indicates | Recent/ongoing dengue infection |
Sample | Whole blood, serum, or plasma |
Time to Result | 15–20 minutes |
Fasting Required | No |
Clinical Use | Emergency screening or field testing |
Follow-up Needed? | Yes, confirm with ELISA or PCR if positive or symptomatic with negative result |
How our test process works!
