A nurse is teaching a client who is at 15 weeks of gestation and is to undergo an amniocentesis. The nurse should explain that the purpose of this test is to identify which of the following conditions? (Select all that apply.)

Explanation:

A. Insert a gloved hand into the vagina to relieve pressure on the cord: This is the correct action because a prolapsed umbilical cord can become compressed, leading to decreased blood flow to the fetus. By inserting a gloved hand into the vagina and lifting the presenting part off the cord, the nurse can relieve pressure and improve blood flow to the fetus until further interventions can be initiated.

B. Cover the cord with a sterile, moist saline dressing: While covering the cord with a sterile, moist saline dressing can help prevent drying and protect the cord, it is not the first action to take in the case of a prolapsed cord. The priority is to relieve pressure on the cord to ensure adequate blood flow to the fetus.

C. Place the client in knee-chest position: Placing the client in a knee-chest position can also help relieve pressure on the cord by using gravity to shift the presenting part away from the cord. However, this should be done after inserting a gloved hand into the vagina to relieve immediate pressure on the cord.

D. Prepare the client for an immediate birth: While preparing the client for an immediate birth may be necessary if the situation cannot be resolved quickly, the first step is to relieve pressure on the cord to prevent fetal compromise.

Explanation:

A. Assess maternal blood glucose:

While assessing blood glucose levels is important in clients receiving magnesium sulfate due to its potential effects on blood sugar, it is not the priority action in this scenario. The client's respiratory rate of 10/min and absent deep-tendon reflexes are signs of magnesium sulfate toxicity, which can lead to respiratory depression and neuromuscular effects. Therefore, the immediate concern is addressing the magnesium toxicity rather than assessing blood glucose levels.

B. Place the client in Trendelenburg position:

Placing the client in Trendelenburg position is not indicated for magnesium toxicity. The Trendelenburg position involves placing the client in a supine position with the legs elevated higher than the head. While this position may be used in some situations (e.g., hypotension), it is not appropriate for treating magnesium toxicity, respiratory depression, or absent deep-tendon reflexes. Placing the client in Trendelenburg position may worsen respiratory function and is not recommended in this case.

C. Prepare for an emergency cesarean birth:

While severe preeclampsia or eclampsia may necessitate emergency cesarean birth in some cases, it is not the immediate action needed for a client experiencing respiratory depression and absent deep-tendon reflexes due to magnesium sulfate toxicity. Cesarean birth is not the appropriate response to magnesium toxicity and would not address the client's current respiratory and neuromuscular issues. Therefore, preparing for an emergency cesarean birth is not the correct action in this scenario.

D. Discontinue the medication infusion:

This is the correct action to take. A respiratory rate of 10/min and absent deep-tendon reflexes are signs of magnesium sulfate toxicity. Magnesium sulfate, while effective in preventing seizures in preeclampsia, can lead to respiratory depression and affect neuromuscular function at toxic levels. Discontinuing the medication infusion is crucial to prevent further magnesium toxicity and adverse effects on the client's respiratory and neuromuscular status. It is the immediate and priority action needed to address the client's current condition.