A nurse is caring for a client who is comatose and has advance directives that indicate the client does not want life-sustaining measures. The client's family wants the client to have life-sustaining measures. Which of the following actions should the nurse take?

Rationale for correct choices:

• Apply oxygen via nasal cannula: The client is experiencing signs of decreased oxygenation (SpO₂ 92%), shallow respirations, and lethargy, which may indicate central nervous system depression from magnesium sulfate. Administering oxygen improves tissue perfusion and is a priority for maternal and fetal well-being.
• Calcium gluconate: Magnesium sulfate toxicity presents with depressed deep tendon reflexes, lethargy, and respiratory depression. Since the client's DTRs have decreased from 3+ to 1+ and respirations are now shallow, calcium gluconate should be prepared as the antidote to reverse toxicity promptly.

Rationale for incorrect choices:

• Reduce fluid intake: Although the client has reduced urine output and elevated creatinine and BUN levels, there is no indication of fluid overload. Reducing fluids does not address the immediate concern of hypoxia or magnesium toxicity, which are more urgent.
• Discontinue IV infusion: The IV is essential for delivering antihypertensive medications and magnesium sulfate. Discontinuing it would delay critical treatment and worsen the client’s condition. Adjustments, if needed, should follow provider orders after assessment, not be the nurse's initial independent action.
• Hydralazine: Hydralazine is appropriate for severe hypertension but is not the most urgent need when magnesium toxicity is suspected. Managing respiratory compromise and preparing the antidote takes precedence over blood pressure control in this case.
• Nifedipine: Nifedipine was already prescribed and may be administered for ongoing hypertension management. However, it is not used to treat magnesium sulfate toxicity and does not reverse respiratory depression. Thus, while important, it is not the immediate medication to prepare in this scenario.

Rationale:

A. "My home has running water and electricity": Access to utilities like water and electricity supports hygiene and food safety. This statement does not indicate a health risk and instead suggests a stable living environment.

B. “I wear a hat and long sleeves while I am working”: Wearing protective clothing helps reduce exposure to the sun, pesticides, and other environmental hazards, thereby promoting health and safety during outdoor labor.

C. “I am currently sharing my home with two roommates”: Sharing housing is common among migrant or seasonal workers. While crowding can pose a potential health risk, this specific scenario doesn’t indicate excessive crowding or direct danger.

D. “I eat vegetables directly from the field where I work”: Consuming unwashed produce from the field poses a significant risk for pesticide exposure and ingestion of harmful microbes. This practice is unsafe and could lead to acute or chronic health issues.