A child with a primary immunodeficiency disorder had postimmunization titers drawn. The titers came back low. Which explanation does the nurse give the parents?
A.
"The immunizations had no effect on the child."
B.
"This result indicates a hyperactive response."
C.
"Vaccinations are not needed in your child."
D.
"Your child's immune system did not respond."
ANS: D
The most correct answer is that the low titers indicate that the child's immune system did not respond adequately to the vaccinations. It cannot be determined if they had no effect at all on the child. Although vaccinations did not produce the desired response, that does not mean they are not needed; they just did not work as planned. This child had a hypoactive, not hyperactive, response.
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