A nurse is assisting with the care of a client who received magnesium sulfate to treat preterm labor. The nurse should monitor the client for which of the following findings as an indication of magnesium sulfate toxicity?
Nausea.
Facial flushing.
Urine output 40 mL/hr.
Respiratory rate 10/min.
The Correct Answer is D
Choice A rationale
Nausea can be a side effect of magnesium sulfate, but it is not a specific indication of toxicity. Other symptoms are more directly indicative of magnesium sulfate overdose.
Choice B rationale
Facial flushing is a common side effect of magnesium sulfate but is not a sign of toxicity. It typically occurs at therapeutic levels and is not a reliable indicator of overdose.
Choice C rationale
Urine output of 40 mL/hr is within normal limits for an adult and does not indicate magnesium sulfate toxicity. However, significantly decreased urine output could be concerning.
Choice D rationale
Respiratory rate of 10/min is a critical sign of magnesium sulfate toxicity. Magnesium sulfate can cause respiratory depression, and a rate of 10 breaths per minute or less indicates that the patient may be experiencing toxic effects, necessitating immediate medical intervention.
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Correct Answer is D
Explanation
Choice A rationale
Lecithin/sphingomyelin (L/S) ratio does not indicate genetic disorders; it's used to assess fetal lung maturity.
Choice B rationale
The test does not determine placental function. It specifically evaluates fetal lung maturity through the ratio of lecithin to sphingomyelin in amniotic fluid.
Choice C rationale
The test is not used to assess the risk of Rh incompatibility. The L/S ratio focuses on lung development rather than blood compatibility issues.
Choice D rationale
The L/S ratio assesses the baby's lung maturity, indicating if the lungs produce enough surfactant for proper function after birth.
Correct Answer is D
Explanation
Choice A rationale
This statement is incorrect because a Papanicolaou test, or Pap smear, is not used for the removal of uterine fibroids. Fibroid removal typically involves surgical procedures like myomectomy.
Choice B rationale
This statement is incorrect because a Pap smear is not used to determine ovulation status. Ovulation can be monitored through methods like basal body temperature tracking or hormone assays.
Choice C rationale
This statement is incorrect because a Pap smear does not detect endometriosis. Endometriosis is usually diagnosed through laparoscopy or imaging studies like ultrasound or MRI.
Choice D rationale
This statement is correct because a Papanicolaou test is specifically designed to detect the presence of cervical cancer and precancerous changes in the cervical cells.