To detect immunoglobulin M (IgM)antibodies in an acute phase,blood should be collected in _____ days after the onset of infection.
A)2 to 5
B)5 to 7
C)7 to 14
D)longer than 21

Question

Quizplus · Accepted Answer

To help diagnose active disease,two approaches are helpful.The detection of virus-specific IgM in an acute-phase specimen collected at least 7 to 14 days after the onset of infection indicates current or very recent disease.The detection of a fourfold (or equivalent increase if twofold dilutions are not tested)antibody titer rise between acute and convalescent sera also indicates current or recent disease.

To Detect Immunoglobulin M (IgM)antibodies in an Acute Phase,blood Should