What manifestations should the nurse identify as signs of magnesium toxicity in a postpartum client?

Magnesium toxicity can occur in a postpartum client, particularly if they are receiving magnesium sulfate, which is often used to prevent seizures in conditions like preeclampsia. The signs of toxicity that the nurse should be vigilant for include a decreased respiratory rate, which indicates respiratory depression due to central nervous system depression caused by high magnesium levels. Additionally, a decreased level of consciousness is a critical manifestation, as elevated magnesium can impair neurological function, leading to lethargy or coma. Double vision, or diplopia, can occur due to the neuromuscular effects of magnesium excess on the ocular nerves.

Recognizing these specific symptoms is vital for prompt intervention, which may involve stopping magnesium administration and providing supportive care to the client. Monitoring for these signs helps ensure patient safety and the effectiveness of care.