A nurse is caring for a client who is in pre-term labor and receiving magnesium sulfate therapy.
The nurse should monitor the client for which of the following adverse effects of magnesium sulfate?
Hypertension
Hyperreflexia
Respiratory depression
Tachycardia
The Correct Answer is C
Magnesium sulfate is a drug that is used to prevent seizures associated with pre-eclampsia and to stop preterm labor. However, it can also cause adverse effects such as respiratory depression, which is a condition where the breathing rate becomes too slow and shallow.
Respiratory depression can be life-threatening for both the mother and the baby, so the nurse should monitor the client’s respiratory rate and oxygen saturation closely.
Choice A is wrong because magnesium sulfate can cause hypotension, not hypertension. Hypotension is low blood pressure, which can lead to dizziness, fainting, and shock.
Choice B is wrong because magnesium sulfate can cause hyporeflexia, not hyperreflexia. Hyporeflexia is a reduced or absent reflex response, which can indicate magnesium toxicity.
The nurse should check the client’s deep tendon reflexes regularly and stop the infusion if they are absent.
Choice D is wrong because magnesium sulfate can cause bradycardia, not tachycardia.
Bradycardia is a slow heart rate, which can reduce the blood flow to vital organs.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Ultrasound.
An ultrasound can help determine the gestational age, fetal growth, placental location, and amniotic fluid volume of the fetus.
These factors can affect the risk of pre-term labor and delivery.
An ultrasound can also detect cervical changes that may indicate pre-term labor.
Choice B is wrong because a blood count is not specific for pre-term labor.
It may be done to check for anemia, infection, or other conditions that may affect the pregnancy, but it does not directly assess the risk of pre-term labor.
Choice C is wrong because a urine culture is not specific for pre-term labor.
It may be done to check for urinary tract infection, which can cause pre-term labor, but it does not directly assess the risk of pre-term labor.
Choice D is wrong because an amniocentesis is not usually done for pre-term labor.
It may be done to check for fetal lung maturity, chromosomal abnormalities, or infections, but it is an invasive procedure that carries some risks and complications.
It does not directly assess the risk of pre-term labor.
Correct Answer is A
Explanation
Magnesium sulfate is a tocolytic drug that inhibits uterine activity and relaxes smooth muscles.The goal of magnesium sulfate therapy for a client who is in pre-term labor is to stop or reduce the frequency and intensity of contractions.
Choice B is wrong because the client’s blood pressure decreases to within normal limits.
Magnesium sulfate is not an antihypertensive drug and does not lower blood pressure.It is used to prevent seizures in clients with preeclampsia or eclampsia.
Choice C is wrong because the client’s deep tendon reflexes are 2+.
This is a normal finding and does not indicate the effectiveness of magnesium sulfate therapy.A decrease or loss of deep tendon reflexes may indicate magnesium toxicity, which is a serious complication that requires immediate intervention.
Choice D is wrong because the client’s urine output increases to more than 30 mL/hr.
This is also a normal finding and does not indicate the effectiveness of magnesium sulfate therapy.A decrease in urine output may indicate renal impairment or magnesium toxicity, which are both adverse effects of the drug.
The normal range for serum magnesium level is 1.5 to 2.5 mEq/L or 1.8 to 3 mg/dL.The therapeutic range for magnesium sulfate management is 5 to 8 mg/dL.
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