What diagnostic test is contraindicated in a patient exhibiting clinical manifestations of increased intracranial pressure?
A) CT scan
B) Lumbar puncture
C) MRI
D) Venous Doppler studies
Ans: B
Feedback: A lumbar puncture in a client with increased intracranial pressure (ICP) may cause the brain to herniate from the withdrawal of fluid and change in pressure during the lumbar puncture. Herniation of the brain is a dire and frequently fatal event. A CT scan, MRI, and venous Doppler are considered noninvasive procedures and would not affect the intracranial pressure itself.
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