Why is the white count in a normal full-term newborn elevated shortly after birth?
a. A relative loss of plasma occurs.
b. An absolute increase in neutrophils occurs.
c. An absolute increase in lymphocytes occurs.
d. An absolute increase in both neutrophils and lymphocytes occurs.
ANS: B
An absolute increase in neutrophils occurs within hours of birth; this elevates the white count. Bands and occasionally myelocytes may also be present. At day 2, the count begins to drop progressively, primarily because of an absolute decrease in neutrophils.
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