A nurse in an antepartum unit is assisting with the care of a client who has preeclampsia and is receiving IV magnesium sulfate therapy. For which of the following adverse effects should the nurse monitor and report to the provider?

A. Increased uterine tone: Methylergonovine is a medication used to prevent or treat postpartum hemorrhage. It works by causing uterine contractions, which helps to control bleeding. An indication that the medication is effective would be an increase in uterine
tone, as this signifies that the uterus is contracting appropriately.
B. Blood pressure 120/74 mm Hg: While a blood pressure of 120/74 mm Hg is within the normal range, it does not specifically indicate the effectiveness of methylergonovine.
Blood pressure is an important parameter to monitor, but it alone does not determine the effectiveness of the medication.
C. Decreased perineal edema: Decreased perineal edema may be a positive sign for the client's overall recovery, but it is not a direct indicator of methylergonovine's
effectiveness. Perineal edema is not a primary concern addressed by this medication.
D. Urinary output 100 mL/hr: Urinary output of 100 mL/hr is an important parameter to monitor for renal function. However, it does not specifically indicate the effectiveness of methylergonovine in preventing or treating postpartum hemorrhage. Urinary output is crucial for assessing kidney function and fluid balance but is not directly related to the action of this medication.

A: This infection does not directly cause hearing loss at birth. Hearing loss in newborns can be associated with genetic factors, birth complications, and certain infections, but GBS is not known to be a direct cause of hearing impairment.

B: A positive GBS test result does not necessitate a cesarean birth. The standard management for GBS-positive mothers is the administration of intrapartum antibiotic prophylaxis, not cesarean delivery, unless there are other obstetric indications.

C: Testing for GBS is typically done between 36 and 37 weeks of gestation because this timing is close to delivery, when the test results are most predictive of the baby's risk of exposure during birth.

D: Antibiotics are not given during the last 2 weeks of pregnancy to prevent GBS transmission. Instead, they are administered during labor to ensure effective levels of the drug during delivery, which is the critical period for preventing transmission to the baby.