To preserve cerebral perfusion of a patient with an elevated intracranial pressure (ICP), which cerebral perfusion pressure (CPP) would the nurse maintain when suctioning the patient?
80 mm Hg
20 mm Hg
40 mm Hg
60 mm HG
The Correct Answer is A
A. Cerebral perfusion pressure (CPP) is crucial for maintaining adequate blood flow to the brain. A CPP of 80 mm Hg is typically considered the lower limit for preserving cerebral perfusion, particularly in patients with elevated ICP.
B. 20 mm Hg is too low and would indicate inadequate perfusion, which could result in brain ischemia.
C. 40 mm Hg is too low for optimal cerebral perfusion in critically ill patients with elevated ICP.
D. 60 mm Hg is also too low for optimal cerebral perfusion in critically ill patients with elevated ICP.
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Related Questions
Correct Answer is D
Explanation
A. Paresthesia (numbness or tingling) is not a typical finding in cellulitis and may suggest nerve involvement or other conditions.
B. Delayed capillary refill time would indicate poor circulation or possible shock but is not a direct sign of cellulitis.
C. Pallor of the right toes could suggest circulatory issues but is not associated with cellulitis.
D. Cellulitis is an infection of the skin and underlying tissues, usually presenting with warmth (hot), tenderness, redness, and swelling (edema) at the site of infection.
Correct Answer is A
Explanation
A. Ventriculostomy is considered the gold standard for measuring intracranial pressure (ICP). This procedure involves placing a catheter into the brain's ventricles to directly measure the pressure inside the skull.
B. Fiberoptic catheter can also be used for ICP measurement, but ventriculostomy is more accurate and allows for drainage of cerebrospinal fluid if needed.
C. Central line is used for venous access, not for measuring ICP.
D. Transcranial Doppler is used to assess blood flow in the brain, but not for direct ICP measurement.
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