The nurse caring for a patient exhibiting clinical manifestations of increased intracranial pressure (ICP) knows that which of the following diagnostic studies would be contraindicated in this patient?
A) CT scan
B) Lumbar puncture
C) MRI
D) Venous Doppler studies
Ans: B
Feedback: A lumbar puncture in a patient with increased intracranial pressure (ICP) may cause the brain to herniate due to the withdrawal of fluid and change in pressure during the procedure. Herniation of the brain is a dire and frequently fatal event. A CT scan, MRI, and Venous Doppler are considered non-invasive procedures and do not affect the intracranial pressure itself.
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