Which outcome would concern the nurse when the patient's calculated mean arterial pressure (MAP) is below 70 mm Hg?
Increased ICP
Decreased cerebral blood flow (CBF)
Increased cerebral perfusion pressure (CPP)
Normal intracranial pressure
The Correct Answer is B
A. Increased ICP would be a concern when the MAP falls below 70 mm Hg because reduced blood pressure can lead to inadequate cerebral blood flow and worsen ICP.
B. Decreased cerebral blood flow (CBF) is also a concern with low MAP, but the priority is maintaining MAP at a sufficient level to ensure adequate perfusion.
C. Increased CPP is unlikely with a low MAP, as CPP is a product of MAP and ICP.
D. Normal ICP would be a good outcome; however, with a low MAP, the nurse should be concerned about insufficient cerebral perfusion and the risk of increased ICP.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The nurse should instruct family members to place food on the unaffected side of the mouth to avoid choking or aspiration.
B. Reclining the head back can make swallowing more difficult. The client should be positioned upright to facilitate safe swallowing.
C. Exercise before meals may not be beneficial for a stroke patient with dysphagia.
D. Taking small bites helps reduce the risk of aspiration and choking and facilitates safer swallowing.
Correct Answer is A
Explanation
A. Flashes of light and floaters are common early symptoms of retinal detachment as the retina begins to pull away from the underlying tissue.
B. Retinal detachment is usually painless; pain with eye movement is more associated with other eye conditions.
C. Increased glare is not typically associated with retinal detachment but may occur in cataracts.
D. Redness is usually a sign of conjunctivitis, not retinal detachment.
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