OB - Managing Severe Preeclampsia. NCLEX example: The nurse cares for an 8-lb, 8-oz newborn. The infant’s history indicates the mother was given magnesium sulfate IV 4 g in 250 mL D5W several hours before delivery. The nurse is MOST concerned if which of the following was observed? A: RR of 18. Rationale: Magnesium Sulfate can cause slowing of respirations and hyporeflexia of newborn. Normal newborn RR 30-60/min.
Uterine relaxants [aka Tocolytics] suppress preterm labor, which is defined as less than 37 weeks of gestation. These are the main meds used: It’s Not My Time!: 1- Magnesium Sulfate [treatment of choice] 2- Terbutaline [Brethine] 3- Nifedipine [Procardia] - CCB 4- Indomethacin - [NSAID]