A charge nurse is educating a newly licensed nurse about fluid and electrolyte balance. Which of the following manifestations should the newly licensed nurse identify as a sign of magnesium sulfate toxicity?
Bradypnea
Tremors
Insomnia
Hypertension
The Correct Answer is A
A. Bradypnea: Magnesium sulfate toxicity depresses the central nervous system, leading to respiratory depression such as bradypnea. This is a critical sign requiring immediate intervention, as respiratory rates below 12 breaths per minute can be life-threatening.
B. Tremors: Tremors are typically associated with hypomagnesemia or withdrawal states, not magnesium toxicity. Magnesium toxicity causes muscle weakness and diminished reflexes rather than increased neuromuscular activity.
C. Insomnia: Insomnia is not a recognized symptom of magnesium toxicity. In contrast, elevated magnesium levels tend to cause sedation, lethargy, and decreased mental alertness.
D. Hypertension: Magnesium sulfate can actually lower blood pressure due to its vasodilatory effects. Hypertension would be inconsistent with toxicity and more commonly seen in preeclampsia before magnesium is administered.
 
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. “Avoid high-fiber foods while taking this medication.”: Fentanyl can cause constipation, so a diet high in fiber is actually recommended to promote bowel regularity. Avoiding fiber would worsen one of the drug’s common side effects.
B. “Remove the patch for 8 hours every day to reduce the risk of tolerance.": Fentanyl patches are designed for continuous, 72-hour use. Removing the patch disrupts pain control and may lead to withdrawal symptoms or inadequate analgesia.
C. “Avoid hot tubs while wearing the patch.”: Heat exposure, including hot tubs or heating pads, can increase fentanyl absorption, potentially leading to overdose. Clients should be advised to avoid external heat sources near the patch.
D. “Apply the patch to your forearm.”: The patch should be applied to a flat, non-irritated area of the upper torso or upper arm. The forearm is not typically recommended due to its mobility and potential for detachment or reduced absorption.
Correct Answer is ["A","C","D"]
Explanation
A. The client slept 5 hr the previous night: Acute manic episodes often involve severe sleep deprivation, sometimes going days without sleep. Achieving 5 hours of rest indicates reduced hyperactivity and a positive response to treatment.
B. The client takes 2 short naps during the day: While napping may seem beneficial, in manic clients it can indicate ongoing disrupted sleep-wake cycles. Full, restorative nighttime sleep is a more reliable sign of improvement.
C. The client consumes 8 oz of high-calorie fluids each hour: During mania, clients often neglect nutritional needs. Actively consuming adequate fluids suggests improved awareness, cooperation, and decreased impulsivity.
D. The client engages in quiet activities in their room: Initially, the client was extremely restless and disruptive. Choosing calm, solitary activities reflects improved impulse control and reduced manic energy.
E. The client appears to listen to unseen others: This suggests persistent auditory hallucinations, indicating that psychotic symptoms remain present and untreated or only partially managed. This is not a sign of improvement.
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