What does Dengue NS1 negative, but IGM positive mean?
Patients with a positive IgM test result are classified as presumptive, recent dengue virus infections.
A hematocrit level increase greater than 20% is a sign of hemoconcentration and precedes shock. The hematocrit level should be monitored at least every 24 hours to facilitate early recognition of dengue hemorrhagic fever and every 3-4 hours in severe cases of dengue hemorrhagic fever or dengue shock syndrome.
The COVID-19 IgG/IgM Rapid is a lateral flow immunoassay intended for the qualitative detection and differentiation of IgM and IgG antibodies to SARS-CoV-2 in human venous whole blood.
For patients presenting during the first week after fever onset, diagnostic testing should include a test for dengue virus (rRT-PCR or NS1) and IgM. For patients presenting more than a week after fever onset, IgM detection is most useful, although NS1 has been reported positive up to 12 days after fever onset
The average time period of the treatment of dengue is between 4 weeks to 6 weeks.