Fever for 3 days? When to get tested for dengue, malaria and typhoid
Dengue, malaria and typhoid can look alike in the first days. Testing tells them apart.
During and after the monsoon, many fevers in Basti and eastern Uttar Pradesh are caused by dengue, malaria or typhoid. In the first few days they can feel very similar — fever, body ache, headache, weakness — but they need different care. A few simple blood tests can tell them apart.
Which tests are usually done?
- Complete Blood Count (CBC) — checks platelets and white cells, which often fall in dengue.
- Dengue NS1 antigen — works best in the first 5 days of fever.
- Dengue IgM antibody — becomes useful after about day 5, so an early negative IgM does not rule out dengue.
- Malaria antigen and/or a peripheral smear — to detect malaria parasites.
- Widal test — sometimes used for typhoid; your doctor may also advise a blood culture.
Our Fever Panel combines these so you can get answers in one visit.
When should I get tested?
If a fever lasts more than 2–3 days, or comes with severe body pain, rash, vomiting or weakness, speak to your doctor about testing. Testing early matters most for dengue, because platelet counts can change quickly.
Warning signs — go to a hospital immediately
- Bleeding from gums or nose, black stools, or red spots on the skin
- Severe stomach pain or repeated vomiting
- Unusual drowsiness, restlessness or difficulty breathing
- Cold, clammy hands and feet
Medicines
If dengue is possible, do not take painkillers such as ibuprofen, diclofenac or aspirin unless your doctor advises it, as they can increase bleeding risk. Drink plenty of fluids and rest.
Frequently asked questions
When should the dengue NS1 test be done?
NS1 works best in the first 5 days of fever. After about day 5, the dengue IgM antibody test becomes more useful.
What platelet count is dangerous in dengue?
Platelets below the normal range need monitoring by a doctor, and very low counts or any bleeding need urgent medical care. Your doctor will decide based on your symptoms and repeat tests.
Is the lab open at night for fever tests?
Yes. PMC Path Lab in Basti is open 24 hours, 7 days a week.
General information only, not a substitute for advice from your doctor. In an emergency, go to the nearest hospital.