An nurse is counseling a new mother about the immunologic properties of breast milk. The nurse emphasizes that breast milk is the main source of which specific immunoglobulin?
Select one:
IgG.
IgE.
IgA.
IgM.
The Correct Answer is C
Choice A Reason: IgG. This is an incorrect answer that refers to a different type of antibody that is not abundant in breast milk. IgG is a type of antibody that provides systemic immunity against various antigens. IgG is found in low concentrations in breast milk, as it does not cross the mammary epithelium easily. IgG can protect the infant from some infections, but it is mainly transferred from the mother to the fetus through the placenta during pregnancy.
Choice B Reason: IgE. This is an incorrect answer that refers to a different type of antibody that is not relevant to breast milk. IgE is a type of antibody that mediates allergic reactions and parasitic infections. IgE is found in very low concentrations in breast milk, as it does not have a significant role in mucosal immunity. IgE can trigger mast cells and basophils to release histamine and other inflammatory mediators, which can cause symptoms such as itching, swelling, or bronchoconstriction.
Choice C Reason: IgA. This is because IgA is a type of antibody that protects mucosal surfaces from pathogens and toxins. IgA is found in high concentrations in breast milk, especially in colostrum (the first milk produced after delivery). IgA can bind to bacteria and viruses in the infant's gastrointestinal tract and prevent them from ataching to the intestinal wall or crossing into the bloodstream. IgA can also enhance the infant's immune system by stimulating lymphoid tissue development and modulating inflammatory responses.
Choice D Reason: IgM. This is an incorrect answer that refers to a different type of antibody that is not abundant in breast milk. IgM is a type of antibody that activates complement system and agglutinates antigens. IgM is found in low concentrations in breast milk, as it does not cross the mammary epithelium easily due to its large size. IgM can protect the infant from some infections, but it is mainly produced by the infant's own immune system in response to exposure to antigens.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason: Macrosomic fetus is a fetus that weighs more than 4000 grams or 8 pounds 13 ounces at birth. It is not a common complication of teenage pregnancy, but rather of maternal diabetes, obesity, or a history of large babies.
Choice B Reason: Preeclampsia is a condition characterized by high blood pressure and proteinuria in pregnancy. It can cause serious complications for both the mother and the baby, such as seizures, organ damage, growth restriction, and placental abruption. Teenage pregnancy is a risk factor for preeclampsia, especially if the mother is younger than 15 years old.
Choice C Reason: Inadequate nutritional status of mother is a condition where the mother does not consume enough calories, protein, vitamins, minerals, or fluids during pregnancy. It can affect the growth and development of the baby and increase the risk of low birth weight, preterm birth, and birth defects. Teenage pregnancy is a risk factor for inadequate nutritional status of mother, as teenagers may have poor dietary habits, eating disorders, or limited access to food.
Choice D Reason: Cephalopelvic disproportion is a condition where the size or shape of the baby's head or body is too large to fit through the mother's pelvis. It can prevent normal vaginal delivery and require cesarean section. Teenage pregnancy is a risk factor for cephalopelvic disproportion, as teenagers may have smaller or immature pelvises that are not fully developed.
Correct Answer is A
Explanation
Choice A Reason: "If I go too long overdue, the amniotic fluid volume can become too low for my baby to be safe." This is a correct answer that indicates that the client understands one of the Reasons for induction of labor at 42 weeks' pregnancy.
Choice B Reason: "My baby took longer to grow, and now she's ready to be born." This is an incorrect answer that shows a misconception about fetal growth and development. Fetal growth does not depend on gestational age alone, but also on genetic, maternal, placental, and environmental factors. A post-term fetus does not necessarily grow faster or larger than a term fetus. In fact, some post-term fetuses may experience intrauterine growth restriction (IUGR), which means slower than expected growth for gestational age.
Choice C Reason: "I don't really need this induction, my baby will come whenever he wants to." This is an incorrect answer that reveals a lack of awareness or acceptance of the need for induction of labor at 42 weeks' pregnancy. Induction of labor is recommended for post-term pregnancies to prevent potential complications such as fetal distress, stillbirth, or maternal hemorrhage.
Choice D Reason: "Since I am so tired of being pregnant, I am being induced." This is an incorrect answer that implies that induction of labor is based on maternal preference or convenience rather than medical indication. Induction of labor should not be done without a valid Reason or informed consent, as it carries some risks such as failed induction, prolonged labor, infection, uterine rupture, or cesarean delivery.
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