A nurse is evaluating the fetal status of a client who has preeclampsia and is receiving magnesium sulfate.
Which of the following findings should the nurse report to the provider as a sign of fetal compromise?
Fetal heart rate of 140 beats/min
Fetal movement of 10 times in an hour
Oligohydramnios on ultrasound
Reactive nonstress test
The Correct Answer is C
Oligohydramnios on ultrasound. Oligohydramnios is a condition where the amniotic fluid volume is less than expected for gestational age. It can be a sign of fetal compromise due to various causes, such as renal abnormalities, placental insufficiency, premature rupture of membranes, or chromosomal anomalies. Oligohydramnios can lead to complications such as fetal deformities, preterm birth, infection, or stillbirth.
Choice A is wrong because a fetal heart rate of 140 beats/min is within the normal range for most of pregnancy.
Choice B is wrong because fetal movement of 10 times in an hour is also within the normal range and indicates fetal well-being.
Choice D is wrong because a reactive nonstress test is a reassuring sign that the fetus is not hypoxic or stressed.
Normal ranges:
• Amniotic fluid index (AFI): 5-25 cm
• Fetal heart rate: 110-160 beats/min
• Fetal movement: at least 10 movements in 2 hours
• Nonstress test: at least two accelerations of fetal heart rate of 15 beats/min for 15 seconds or more in 20 minutes
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Respiratory rate of 10 breaths/min.
This is a sign ofmagnesium toxicity, which can occur when a client receives magnesium sulfate infusion for severe pre-eclampsia.Magnesium toxicity can causemuscle weakness,difficulty breathing,irregular heartbeats, andcardiac arrest.
Choice B is wrong because deep tendon reflexes of 2+ are normal and do not indicate magnesium toxicity.
Choice C is wrong because urine output of 40 mL/hour is adequate and does not indicate magnesium toxicity.
The minimum urine output for an adult is 30 mL/hour.
Choice D is wrong because serum magnesium level of 6 mEq/L is within the normal range of 1.7 to 2.3 mEq/L and does not indicate magnesium toxicity.Magnesium levels above 2.6 mEq/L can indicate hypermagnesemia.
Correct Answer is A
Explanation
Administer calcium gluconate as an antidote if toxicity occurs.Magnesium sulfate is a mineral that reduces seizure risks in women with severe preeclampsia.However, it can also cause side effects and toxicity, such as respiratory depression, muscle weakness, and cardiac arrest.Calcium gluconate is an antidote that can reverse the effects of magnesium sulfate and restore normal neuromuscular function.
Choice B is wrong because magnesium sulfate does not affect blood glucose levels.
There is no need to monitor the client’s blood glucose level every 4 hours.
Choice C is wrong because the infusion should be discontinued if the client’s respiratory rate is below 12/min, not 16/min.
A low respiratory rate indicates respiratory depression, which is a sign of magnesium toxicity.
Choice D is wrong because the infusion rate should not be increased if the client’s urine output is above 30 mL/hr.Urine output should be at least 30 mL/hr while administering magnesium sulfate to prevent accumulation of the drug in the body.
Increasing the infusion rate can increase the risk of toxicity.
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