A nurse is caring for a client who is being evaluated for multiple sclerosis. Which of the following tests should the nurse anticipate the provider will order to assist with diagnosis?

Choice A Reason:

Vasogenic cerebral edema is appropriate response. Vasogenic cerebral edema occurs due to disruption of the blood-brain barrier (BBB), leading to leakage of fluid and proteins from the blood vessels into the brain parenchyma. This type of cerebral edema is commonly associated with conditions such as brain tumors, abscesses, and ischemic stroke.

Choice B Reason:

Osmotic cerebral edema is inappropriate response. Osmotic cerebral edema occurs when there is an imbalance of osmotic forces across the blood-brain barrier, leading to the movement of water into the brain cells. This type of cerebral edema can result from conditions such as hyponatremia or the administration of hypertonic solutions.

Choice C Reason:

Cellular cerebral edema is inappropriate response. Cellular cerebral edema involves the swelling of brain cells (neurons and glial cells) due to various insults, such as ischemia, hypoxia, or metabolic disturbances. This type of cerebral edema can occur in conditions such as ischemic stroke or traumatic brain injury.

Choice D Reason:

Interstitial cerebral edema is incorrect response. Interstitial cerebral edema involves the accumulation of fluid within the interstitial spaces of the brain tissue. This type of cerebral edema can occur in conditions such as hydrocephalus, where there is obstruction of cerebrospinal fluid (CSF) flow.

Choice A Reason:

Osteoporosis is inappropriate. Chronic respiratory acidosis can lead to osteoporosis over time due to several factors, including chronic hypoxemia, which can affect bone metabolism and lead to bone loss.

Choice B Reason:

Polyuria is inappropriate. Polyuria, or increased urination, is not typically associated with chronic respiratory acidosis. In fact, respiratory acidosis tends to cause retention of bicarbonate ions, which can lead to compensatory metabolic alkalosis and decreased urine output.

Choice C Reason:

Anxiety and depression is inappropriate. Chronic respiratory acidosis can lead to symptoms such as lethargy, confusion, and decreased mental acuity due to the effects of elevated CO2 levels on the central nervous system. While anxiety and depression are not direct consequences of chronic respiratory acidosis, individuals with COPD may experience anxiety and depression as a result of their chronic respiratory condition.

Choice D Reason:

Delirium is correct. Delirium, characterized by an acute change in mental status, confusion, and altered consciousness, can occur in severe cases of chronic respiratory acidosis, especially during acute exacerbations. Elevated CO2 levels can affect brain function and lead to symptoms of delirium.