For a client on magnesium sulfate who exhibits deep tendon reflexes (DTR) of +1 and a low respiratory rate, what should the nurse do?

In the context of a client receiving magnesium sulfate, monitoring deep tendon reflexes (DTR) is crucial, as it serves as an indicator of magnesium toxicity. A DTR of +1 indicates diminished reflexes, which may signal the beginning of toxicity or a need for intervention. Additionally, a low respiratory rate is a concerning sign, as magnesium sulfate can lead to respiratory depression.

Given these two factors—a significantly reduced DTR and a low respiratory rate—the most appropriate action is to stop the magnesium sulfate infusion. This is necessary to prevent further complications, such as respiratory failure or worsening of neurological status, which can result from elevated serum magnesium levels.

The action of stopping the infusion directly addresses the potential risk posed by the current symptoms, ensuring the client remains safe and allowing for further evaluation and adaptation of the treatment plan as necessary. This intervention prioritizes patient safety and the need for immediate action in the face of concerning clinical signs.