How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which of the following is a primary indication for performing a nonstress test during pregnancy?

A.

To determine the exact gestational age of the fetus

B.

To measure the amniotic fluid volume

C.

To confirm the presence of labor contractions

D.

To assess fetal well-being in cases of suspected fetal growth restriction

Answer and Explanation

The Correct Answer is D

A. To determine the exact gestational age of the fetus. Gestational age is estimated via ultrasound and fundal height, not an NST.

B. To measure the amniotic fluid volume. Amniotic fluid volume is assessed with an ultrasound and amniotic fluid index (AFI), not an NST.

C. To confirm the presence of labor contractions. An NST does not confirm labor contractions; it evaluates fetal heart rate in response to fetal movement.

D. To assess fetal well-being in cases of suspected fetal growth restriction. An NST evaluates fetal oxygenation and well-being, making it useful in cases of intrauterine growth restriction (IUGR) or other concerns about fetal health.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is C

Explanation

A. Maternal heart rate: While the maternal heart rate is important, it is not directly related to interpreting FHR patterns. However, it is necessary to differentiate between the maternal and fetal heart rate on the monitor.

B. Gestational age: While gestational age affects fetal heart rate (younger fetuses tend to have higher baseline rates), it is not a direct component of FHR interpretation.

C. Uterine contractions: Uterine contractions are crucial in FHR interpretation because they influence perfusion to the fetus. Decelerations occurring with contractions may indicate fetal distress (e.g., late decelerations suggest uteroplacental insufficiency).

D. Presence of accelerations and decelerations: Accelerations and decelerations provide key information about fetal well-being. Accelerations indicate fetal well-being, while decelerations may signal hypoxia, cord compression, or uteroplacental insufficiency.

Correct Answer is D

Explanation

A. Heart rate of 56/min. Bradycardia (HR <60/min) can indicate magnesium toxicity. Magnesium sulfate can depress the central nervous system, leading to cardiac complications.

B. Urine output of 50 mL in 4 hr. Urine output should be at least 30 mL/hr (120 mL in 4 hours). Oliguria (low urine output) may indicate magnesium toxicity due to impaired renal excretion.

C. Diminished deep-tendon reflexes. Mildly decreased reflexes may be expected with magnesium therapy, but absent or significantly diminished deep tendon reflexes (DTRs) are an early sign of magnesium toxicity.

D. Respiratory rate of 16/min. A respiratory rate of ≥12 breaths/min indicates that the client is not experiencing respiratory depression, a major concern with magnesium sulfate toxicity. Magnesium should be discontinued if respiratory rate drops below 12/min.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register