The primary care provider states that the patient is experiencing vasogenic edema. The nurse real-izes vasogenic edema is clinically important because:
a. it usually has an infectious cause.
b. the blood-brain barrier is disrupted.
c. ICP is excessively high.
d. it always causes herniation.
ANS: B
Vasogenic edema is clinically important because the blood-brain barrier (selective permeability of brain capillaries) is disrupted, and plasma proteins leak into the extracellular spaces. Vasogenic edema does not have an infectious cause. ICP is increased, but not more so than other forms of edema. Vasogenic edema does not always cause herniation.
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