The most likely interpretation of an elevated immunoglobulin M (IgM)level in a newborn is
A) The infant was breastfed during the first hours after birth
B) Transference of immune globulins from the placenta to the infant
C) An overwhelming allergic response to an antigen
D) A recent exposure to a pathogenic agent

Question

Quizplus · Accepted Answer

Elevated IgM levels in a newborn typically indicate a recent exposure to a pathogenic agent, as IgM is the first antibody produced in response to an infection.

The Most Likely Interpretation of an Elevated Immunoglobulin M (IgM)level