At a Glance
Package: Advance Fever Package. Tests: 70 parameters, 8 components. Price: From 1199. Fasting: Not required. Sample: Blood and urine, single visit. Reports: 12 hours, digital. Home collection: Free across Gurgaon. Lab: NABL-accredited. This is the fever workup for the first week of illness in Delhi NCR, where dengue, typhoid, malaria and chikungunya all circulate in the same months. Against the Basic Fever Package, it adds four things: Dengue NS1 Antigen (Rapid), Typhidot - Serum (IgG - IgM BY ELISA) in place of Widal, and full Kidney Function and Liver Function profiles, which matter because dengue and typhoid both affect the liver and because fluid loss in a febrile illness shows up in kidney markers. Presenting later than about day 6 of fever? See the timing section below and consider the Comprehensive Fever Package, which adds Dengue IgM and IgG. ## Dengue NS1 Antigen: Why the Day of Fever Decides the Test Dengue NS1 Antigen (Rapid) detects a protein the dengue virus itself produces. It is detectable from roughly day 1 to day 7 of fever, making it the dengue test for the early febrile phase — the window when most people first see a doctor and antibody tests are still negative. That window is also its limitation, and it is the single most useful thing to understand about dengue testing. NS1 falls away as the body begins producing antibodies. Dengue IgM appears around day 4 to day 5 and indicates current or recent infection. Dengue IgG suggests past infection, or secondary infection when it rises together with IgM. So a patient presenting on day 6 of fever may be NS1-negative and IgM-positive, and an NS1 test alone would have missed it. This package carries NS1 only; the Comprehensive Fever Package carries NS1, IgM and IgG, covering a wider span of the illness. Early on — day 1 to day 5 — NS1 is the right test and this package is sufficient; later, the three-marker version has a genuine advantage. A negative NS1 early in the illness does not rule dengue out, and no antigen or antibody test replaces clinical monitoring: falling platelets, rising haematocrit and warning signs guide treatment. ## Typhidot by ELISA Instead of Widal Typhidot - Serum (IgG - IgM BY ELISA) detects IgM and IgG antibodies to Salmonella typhi. It turns positive earlier in the illness than Widal, and it is specific to S. Typhi rather than reacting across Salmonella species. That is the reason it replaces Widal here. Widal (Slide Agglutination Test), used in the Basic Fever Package, cross-reacts with other Salmonella, stays positive after past infection or vaccination, is often falsely positive in endemic areas such as Delhi NCR, and classically needs paired samples 7 to 10 days apart. Typhidot avoids most of that. One honest caveat: blood culture remains the reference standard for typhoid, and this package does not include it. If your doctor needs certainty before starting or changing an antibiotic, ask for a blood culture — and do it before the first dose, because antibiotics taken beforehand sharply reduce the yield. ## Blood Picture - Peripheral Smear Examination A pathologist prepares a slide from your sample and reads it under a microscope, cell by cell. It cannot be automated, which is why it is the line item competitors drop to hold a price point — it is pathologist time, not machine time. Five findings are reported: Red Blood Cells, White Blood Cells, Platelets, Hemoparasites, and a written Impression. In a dengue-endemic city the platelet assessment is the reason this matters most. Falling platelets are the key monitoring parameter in dengue, and automated counters misread platelet clumping as a dangerously low count — a pathologist reviewing the slide catches that artefact before anyone acts on a false alarm. Hemoparasites means malarial parasites are looked for inside red blood cells directly, alongside the antigen assay. Where the count shows anaemia, the smear explains it: microcytic cells point to iron deficiency, macrocytic to B12 or folate deficiency, sickle-shaped to sickle cell disease, blast cells to possible leukaemia — relevant given over 50% of Indian women aged 15–49 are anaemic (NFHS-5, 2019–21). ## The Other 5 Components CBC with ESR (21): Haemoglobin, platelet count, haematocrit, the full white cell differential and ESR — the pattern-reading core of any fever workup. MALARIA ANTIGEN -EIA (1): Enzyme immunoassay for malarial antigen; can stay positive for some days after treatment. Liver Function Test (12): Bilirubin, SGOT, SGPT, GGT, ALP and proteins; transaminases commonly rise in dengue and typhoid. Kidney Function Test (12): Urea, creatinine, electrolytes and GFR, which reflect dehydration and fluid shifts during a febrile illness. Complete Urine Analysis (17): Nitrites, leukocytes, pus cells, protein and casts — the screen that identifies urinary infection as the fever source. ## Limitations No chikungunya IgM, scrub typhus, leptospira, COVID-19 or influenza test, no blood culture, no Procalcitonin, no CRP, no imaging. Fever with breathlessness, persistent vomiting, bleeding, drowsiness or falling urine output needs urgent in-person assessment, not a repeat blood test. ## Sources NFHS-5, 2019–21 Content last reviewed: October 2026