A nurse is monitoring the pulmonary artery wedge pressure (PAWP) for a client. The nurse should identify that a reading of 17 mm Hg is an indication of which of the following conditions?

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 is correct because respiratory acidosis is characterized by a low pH and a high PaCO2, indicating that the client has impaired ventilation and excess carbon dioxide in the blood.

Choice B Reason: This is incorrect because respiratory alkalosis is characterized by a high pH and a low PaCO2, indicating that the client has increased ventilation and reduced carbon dioxide in the blood.

Choice C Reason: This is incorrect because metabolic acidosis is characterized by a low pH and a low HCO3, indicating that the client has an excess of metabolic acids or a loss of base in the blood.

Choice D Reason: This is incorrect because metabolic alkalosis is characterized by a high pH and a high HCO3, indicating that the client has an excess of base or a loss of metabolic acids in the blood.