A nurse is caring for a client who is receiving magnesium sulfate for pre-term labor.

Which of the following assessments should the nurse perform to evaluate the therapeutic effect of the medication?

All of the above.The nurse should include all of these signs and symptoms in the teaching as they may indicate pre-term labor.Pre-term labor occurs when regular contractions begin to open the cervix before 37 weeks of pregnancy.

Choice A is wrong because decreased fetal movement is not a normal sign of pre-term labor, but it may indicate fetal distress or other complications.

Choice B is wrong because increased vaginal discharge is not a normal sign of pre-term labor, but it may indicate infection or rupture of membranes.

Choice C is wrong because pelvic pressure is not a normal sign of pre-term labor, but it may indicate cervical dilation or descent of the fetus.

Tocolytics are a category of drugs used to delay the labor process.These may be used in situations when a pregnant person begins showing signs of preterm labor —which is any time before 37 weeks of completed pregnancy.Tocolytics may help delay labor by two to seven days.

Some possible explanations for the other choices are:

• Choice A. Administering intravenous fluids.

This is not a correct answer because intravenous fluids are not effective in suppressing uterine contractions.They may be used to correct dehydration or electrolyte imbalance, which can sometimes trigger preterm labor, but they are not a primary intervention for preterm labor.

• Choice C. Administering corticosteroids.

This is not a correct answer because corticosteroids are not tocolytics.They do not stop or slow down uterine contractions, but they help accelerate fetal lung maturity and reduce the risk of neonatal respiratory distress syndrome and other complications of prematurity.

Corticosteroids are often given along with tocolytics, but they have a different function and mechanism of action.

• Choice D. Administering antibiotics.

This is not a correct answer because antibiotics are not tocolytics.They may be used to treat infections that can cause or complicate preterm labor, such as chorioamnionitis or group B streptococcus, but they do not directly affect uterine contractions.

Antibiotics may be given along with tocolytics, but they have a different function.