Author Question: A patient is in preterm labor, and the prescriber orders magnesium sulfate for its neuroprotective ... (Read 88 times)

Zulu123 · **on:** Jul 23, 2018

A patient is in preterm labor, and the prescriber orders magnesium sulfate for its neuroprotective effect on the fetus.

The order calls for 4 gm given as an intravenous bolus over 20 minutes, followed by a maintenance infusion of 2 gm/hr. What will the nurse do?
a. Administer the drug as ordered.
b. Question the bolus amount.
c. Question the bolus rate.
d. Question the maintenance amount.

Question 2

A patient is admitted to the obstetric unit in preterm labor at 36 weeks' gestation. The prescriber orders a tocolytic agent. When teaching the patient about this medication, the nurse will tell her that tocolytics:

a. are given until term to reduce fetal mortality.
b. are used to help the fetal lungs mature.
c. help delay delivery while glucocorticoids are given.
d. help treat the infections that cause preterm labor.

Ptupou85 · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

ANS: D
For fetal neuroprotective uses, magnesium sulfate should be given using a low-dose protocol, which is a 4-gm IV loading bolus over 20 minutes, followed by a maintenance infusion of 1 gm/hr. A high-dose protocol would have a maintenance infusion of 2 to 3 gm/hr. The nurse should question the maintenance amount. The bolus amount and rate are correct.

Answer to Question 2

ANS: C
Tocolytic agents are used to postpone premature labor and, on average, for only 48 hours. During this time, glucocorticoids are given to help the fetal lungs mature. Tocolytic agents do not suppress labor long term. They do not directly help the fetal lungs to mature; they help by allowing time for glucocorticoids to be given. They do not treat infection.