Final answer:
Following the administration of magnesium sulfate 1 g IV bolus, the nurse should monitor for respiratory paralysis as an adverse effect. Elevated magnesium levels can depress the muscular and nervous system, leading to weakened respiratory muscles, which can be life-threatening.
Step-by-step explanation:
A nurse is assessing a client following the administration of magnesium sulfate 1 g IV bolus. The adverse effect a nurse should monitor for is respiratory paralysis. Magnesium sulfate can cause muscular and nervous system depression, leading to decreased respiratory function. It is important to monitor the client's respiratory status, as elevated magnesium levels can cause respiratory muscles to weaken, which can potentially lead to respiratory arrest.
While the options provided include hyperreflexia, increased blood pressure, and tachycardia, these are not typical adverse effects of magnesium sulfate administration. Instead, high doses of magnesium can lead to decreased reflexes (areflexia), lowered blood pressure (hypotension), and bradycardia. Therefore, option c, respiratory paralysis, is the correct adverse effect to monitor for in a client receiving magnesium sulfate.