A client presents to the emergency department status postseizure. The physician wants to know what the pressure is in the client's head. What test might be ordered on this client?
A) Lumbar puncture
B) Echoencephalography
C) Nerve conduction studies
D) EMG
A
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Changes in CSF occur in many neurologic disorders. A lumbar puncture (spinal tap) is performed to obtain samples of CSF from the subarachnoid space for laboratory examination and to measure CSF pressure. Echoencephalography records the electrical impulses generated by the brain. Nerve conduction studies measure the speed with which the nerve impulse travels along the peripheral nerve. Electromyography studies the changes in the electrical potential of muscles and the nerves supplying the muscles.
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