A nurse in the emergency department is caring for a client who was injured in a motor-vehicle crash. The client reports dyspnea and severe pain. The nurse notes that the client's chest moves inward during inspiration and bulges out during expiration. The nurse should identify this finding as which of the following?

Choice A Reason: Observing for cerebrospinal fluid (CSF) leaks from the evacuation site is important, but not the first action that the nurse should take. CSF leaks can indicate a breach in the dura mater, which can increase the risk of infection and meningitis. The nurse should inspect the dressing and the nose and ears for any clear or bloody drainage, and report any findings to the provider. However, these measures are secondary to ensuring adequate oxygenation and perfusion.

Choice B Reason: Checking the oximeter is also important, but not the first action that the nurse should take. The oximeter measures the oxygen saturation of the blood, which reflects the adequacy of gas exchange in the lungs. The nurse should maintain the oxygen saturation above 90%, and administer supplemental oxygen as prescribed.

However, these measures are secondary to ensuring adequate oxygenation and perfusion.

Choice C Reason: Assessing for an increase in temperature is another important action, but not the first one that the nurse should take. An increase in temperature can indicate an infection, inflammation, or damage to the hypothalamus, which can affect the thermoregulation of the body. The nurse should monitor the temperature and administer antipyretics as prescribed. However, these measures are secondary to ensuring adequate oxygenation and perfusion.

Choice D Reason: Monitoring for manifestations of increased intracranial pressure is the first action that the nurse should take. Increased intracranial pressure can result from bleeding, swelling, or fluid accumulation in the brain, which can compress and damage brain tissue and blood vessels. The nurse should assess for signs and symptoms of increased intracranial pressure, such as headache, nausea, vomiting, altered level of consciousness, pupillary changes, or Cushing's triad (bradycardia, hypertension, and irregular respirations). The nurse should also intervene to prevent or reduce increased intracranial pressure, such as elevating the head of the bed, maintaining normothermia, and administering osmotic diuretics. Monitoring for manifestations of increased intracranial pressure is essential to prevent further brain injury and preserve neurological function.

Choice A Reason: This choice is incorrect because inserting a central line is not a priority action for a client who has a sucking chest wound. A central line is a catheter that is inserted into a large vein in the neck, chest, or groin to administer fluids, medications, or blood products. It may be indicated for clients who have hypovolemia, sepsis, or shock, but it does not address the underlying cause of the client's respiratory distress.

Choice B Reason: This choice is incorrect because removing the dressing to inspect the wound may worsen the client's condition. A sucking chest wound is an open wound in the chest wall that allows air to enter and exit the pleural cavity with each breath. This creates a positive pressure in the pleural space that collapses the lung on the affected side and shifts the mediastinum to the opposite side, impairing the ventilation and circulation of both lungs. Therefore, the nurse should apply an occlusive dressing that covers three sides of the wound and allows air to escape but not enter the pleural cavity. Removing the dressing may allow more air to enter and increase the risk of tension pneumothorax, which is a life-threatening complication.

Choice C Reason: This choice is correct because administering oxygen via nasal cannula may help to improve the client's oxygenation and ventilation. A nasal cannula is a device that delivers oxygen through two prongs that fit into the nostrils. It can provide oxygen at low flow rates (1 to 6 L/min) and low concentrations (24 to 44 percent). The nurse should monitor the client's respiratory rate, pulse oximetry, and arterial blood gases to assess the effectiveness of oxygen therapy.

Choice D Reason: This choice is incorrect because raising the foot of the bed to a 90° angle may worsen the client's respiratory distress. This position may increase the pressure on the diaphragm and reduce the lung expansion. It may also decrease the venous return and cardiac output, leading to hypotension and shock. Therefore, the nurse should position the client in a semi-Fowler's position (30 to 45° angle) or high-Fowler's position (60 to 90° angle) to facilitate breathing and prevent further complications.