A nurse is caring for a client who is in labour and notes that the umbilical cord is prolapsed. Which of the following actions should the nurse take?

A. Hypoxemia is a condition of low oxygen levels in the blood. PEEP can actually improve oxygenation by preventing alveolar collapse and increasing functional residual capacity.

B. Tension pneumothorax is a life-threatening condition of air accumulation in the pleural space that causes increased intrathoracic pressure and compresses the lungs, heart, and great vessels. PEEP can increase the risk of tension pneumothorax by creating excessive positive pressure in the airways and alveoli.

C. Malignant hypertension is a severe form of high blood pressure that can cause organ damage and stroke. PEEP can cause a transient increase in blood pressure due to increased intrathoracic pressure, but it does not cause malignant hypertension.

D. Atelectasis is a condition of partial or complete lung collapse due to alveolar collapse or obstruction. PEEP can prevent or treat atelectasis by maintaining positive pressure in the airways and alveoli.

A. Correct. A 6-month-old infant who has croup and an O2 saturation of 92% on room air is at risk of respiratory distress and hypoxia. Croup causes inflammation and narrowing of the upper airway, which can compromise breathing. An O2 saturation of 92% is below the normal range of 95% to 100% and indicates inadequate oxygenation. This child needs immediate assessment and intervention to prevent further deterioration.

B. Incorrect. A 15-year-old adolescent who is 2 hr postoperative following an open reduction and internal fixation of the left ankle and is requesting pain medication has a priority need for pain management, but not as urgent as a child with respiratory compromise. The nurse should assess the adolescent's pain level, administer the prescribed analgesic, and monitor the effectiveness of the medication.

C. Incorrect. A 3-year-old toddler who has gastroenteritis, moderate dehydration, and had two loose bowel movements over the past 24 hr has a potential risk for fluid and electrolyte imbalance, but not as acute as a child with respiratory compromise. The nurse should monitor the toddler's intake and output, vital signs, weight, and skin turgor, and administer oral or intravenous fluids as prescribed.

D. Incorrect. A 10-year-old child who is awaiting surgery for an appendectomy and experienced sudden relief from pain may have a perforated appendix, which can lead to peritonitis and sepsis. However, this child is not as unstable as a child with respiratory compromise. The nurse should notify the surgeon of the change in pain status, monitor the child's vital signs, abdominal assessment, and laboratory results, and prepare the child for surgery.