To reassure and educate pregnant clients about changes in their breasts, nurses should be aware that:
a. The visibility of blood vessels that form an intertwining blue network indicates full function of Montgomery's tubercles and possibly infection of the tubercles.
b. The mammary glands do not develop until 2 weeks before labor.
c. Lactation is inhibited until the estrogen level declines after birth.
d. Colostrum is the yellowish oily substance used to lubricate the nipples for breastfeeding.
ANS: C
Lactation is inhibited until after birth. The visible blue network of blood vessels is a normal outgrowth of a richer blood supply. The mammary glands are functionally complete by midpregnancy. Colostrum is a creamy, white-to-yellow premilk fluid that can be expressed from the nipples before birth.
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