A nurse is interviewing the partner of a client who was admitted in the manic phase of bipolar disorder. The partner states, "I don't know what to do. Everything has been happening so quickly." Which of the following responses by the nurse is therapeutic?

A. Respiratory rate 10/min. This is the priority finding because it suggests respiratory depression, a serious side effect of magnesium sulfate therapy. Magnesium acts as a CNS depressant, and a respiratory rate below 12/min is a potential sign of magnesium toxicity, which can lead to respiratory arrest if not promptly addressed.
B. 2+ deep-tendon reflexes. This indicates normal neuromuscular function and is actually a reassuring finding in a client receiving magnesium sulfate. Reflexes are typically monitored to detect early signs of toxicity, and a 2+ rating means the dose is likely therapeutic.
C. 3+ pedal edema. While significant, pedal edema is a common feature of preeclampsia and not directly related to magnesium sulfate toxicity. It should be monitored but does not require immediate action compared to respiratory compromise.
D. Urinary output 35 mL/hr. This is slightly above the minimum acceptable output of 30 mL/hr, indicating the kidneys are excreting adequately. While magnesium is excreted renally and output must be monitored, this value does not indicate an acute risk.

A. Assess the client's peripheral pulses every 15 min. Frequent assessment of peripheral pulses, especially in the affected extremity, is essential to monitor for signs of arterial occlusion, hematoma, or compromised circulation following a femoral catheterization.

B. Change the client's dressing 4 hr following the procedure. The initial pressure dressing should not be disturbed unless there are signs of bleeding or saturation. Routine dressing changes this soon can disrupt the clotting process at the insertion site.

C. Instruct the client to flex the right knee every 30 min. The client should keep the affected leg straight to prevent disrupting the insertion site. Flexing the knee can increase the risk of bleeding and compromise the integrity of the puncture site.

D. Elevate the head of the client's bed to 45°. Elevating the head of the bed too high can increase abdominal pressure on the femoral site, risking bleeding. The bed should be kept no higher than 30° to reduce stress on the insertion area.