The nurse caring for a woman hospitalized for hyperemesis gravidarum should expect that initial treatment will involve:

Choice A reason: Low birth weight is not a common complication of GDM, as the fetus tends to grow larger than normal due to the excess glucose and insulin in the blood. Low birth weight is more likely to occur in infants of mothers with preexisting diabetes or other conditions that affect placental function.

Choice B reason: Preterm birth is a possible complication of GDM, as the increased fetal size and the risk of maternal hypertension or infection may induce labor before term. However, it is not the greatest risk for the fetus, as preterm infants can survive with proper care and treatment.

Choice C reason: Macrosomia is the greatest risk for the fetus of a mother with GDM, as it is defined as a birth weight of more than 4000 g or 8 lb 13 oz. Macrosomia can cause difficulties during labor and delivery, such as shoulder dystocia, birth trauma, or cesarean birth. It can also increase the risk of neonatal hypoglycemia, jaundice, or respiratory distress.

Choice D reason: Congenital anomalies of the central nervous system are not a common complication of GDM, as they usually occur in the first trimester of pregnancy, before GDM is diagnosed or develops. Congenital anomalies are more likely to occur in infants of mothers with preexisting diabetes or other genetic or environmental factors.

Choice A reason: This is incorrect because venipuncture for blood work should be avoided on the affected arm. The mastectomy may have involved the removal of lymph nodes, which can impair the lymphatic drainage and increase the risk of lymphedema (swelling) in the arm. Venipuncture can cause further damage or infection to the arm.

Choice B reason: This is correct because the BP cuff should not be applied to the affected arm. The BP cuff can exert pressure on the arm and interfere with the blood and lymph flow. This can also increase the risk of lymphedema or pain in the arm.

Choice C reason: This is incorrect because the affected arm should not be held down close to the woman's side. The woman should be encouraged to elevate the arm above the level of the heart and perform gentle exercises to promote circulation and prevent stiffness. The arm should not be immobilized or restricted.

Choice D reason: This is incorrect because the affected arm should not be used for IV therapy. IV therapy can introduce fluids or medications into the arm that can affect the blood and lymph flow. It can also cause irritation or infection to the arm.