Oxytocin, tocolytics, and contraceptive and hormone therapy medications with their key nursing considerations.
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- What is the most serious adverse effect of IV oxytocin during labor induction?
- Uterine tachysystole (hyperstimulation).
- Why can a prolonged high-dose oxytocin infusion cause water intoxication?
- Oxytocin has an antidiuretic (ADH-like) effect that promotes water retention.
- What is the first nursing action if uterine tachysystole occurs during an oxytocin infusion?
- Stop the oxytocin infusion immediately.
- What must be continuously monitored during an oxytocin infusion?
- Fetal heart rate and uterine contractions.
- How is oxytocin administered during labor induction?
- As an IV infusion via an infusion pump, piggybacked into the main IV line.
- Why is oxytocin given after delivery of the placenta?
- To contract the uterus and prevent or control postpartum hemorrhage.
- What is a tocolytic drug?
- A medication used to suppress uterine contractions and stop preterm labor.
- What drug class is terbutaline used as when given as a tocolytic?
- A beta2-adrenergic agonist.
- What adverse effects should the nurse monitor for with terbutaline?
- Tachycardia, tremors, and hyperglycemia.
- How does magnesium sulfate work as a tocolytic?
- It relaxes uterine smooth muscle to stop preterm contractions.
- What is an early sign of magnesium sulfate toxicity?
- Loss of deep tendon reflexes.
- What is the antidote for magnesium sulfate toxicity?
- Calcium gluconate.
- Besides deep tendon reflexes, what two parameters must be monitored during magnesium sulfate therapy?
- Respiratory rate and urine output.
- What drug class is nifedipine when used as a tocolytic?
- A calcium channel blocker.
- What drug class is indomethacin when used as a tocolytic?
- An NSAID (prostaglandin synthesis inhibitor).