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 B
Explanation
A. Allow the client to walk unassisted near the nursing station: Even in a monitored area, allowing an at-risk client to ambulate unassisted increases the chance of falling. Clients on fall precautions should always have supervision or assistive devices during ambulation.
B. Establish an elimination schedule for the client: Scheduled toileting reduces the risk of unassisted attempts to get out of bed, a common cause of falls in hospitalized clients. It supports safety by addressing one of the most frequent fall triggers.
C. Raise the four bed rails on the client’s bed: Using all four bed rails can be considered a form of restraint and may increase fall risk if the client tries to climb over them. Two or three side rails are safer and still provide support.
D. Silence the bed alarm when visitors are at the client’s bedside: Bed alarms are a key fall prevention tool. Silencing them reduces their effectiveness and can delay the response to unsupervised movement, even if visitors are present.
Correct Answer is C
Explanation
A. Remove the peripheral IV site: The IV site should be maintained with normal saline to keep access open for potential emergency medications or further treatment. Removing it too early may hinder urgent intervention.
B. Infuse 0.9% sodium chloride through the infusion set tubing: Normal saline should be infused after stopping the transfusion, but it must be done through new tubing to avoid continued exposure to the blood product.
C. Stop the transfusion of the blood: Itching and flushing are signs of a mild allergic transfusion reaction. The immediate priority is to stop the transfusion to prevent the reaction from progressing. This action helps prevent further antigen exposure.
D. Monitor the client's vital signs every 30 min: While vital sign monitoring is important, it is not the first or most urgent action. The priority is to stop the transfusion and address the reaction promptly.
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