A nurse is teaching a client about the functions of the central nervous system (CNS). Which of the following statements by the client indicates a need for further teaching?

Choice A reason:

This is the correct answer because epidural steroid injections are used to treat radiculopathy by reducing inflammation and edema of the nerve root, which can relieve radicular pain and improve neurological function.

Choice B reason:

This is incorrect because local anesthetic alone can provide temporary pain relief by blocking nerve conduction, but it does not address the underlying cause of radiculopathy, which is nerve root compression.

Choice C reason:

This is incorrect because steroid and local anesthetic do not have any effect on the size or shape of the disc or bone spur that is compressing the nerve root. They only reduce inflammation and pain.

Choice D reason:

This is incorrect because although epidural injections may have fewer systemic side effects than oral or intravenous medications, they still have some risks and complications, such as infection, bleeding, nerve damage, or spinal headache.

Choice A reason:

This is a correct statement, as the CNS receives sensory information from various receptors in the body and interprets it.

Choice B reason:

This is a correct statement, as the CNS initiates and coordinates motor commands to control voluntary and involuntary movements.

Choice C reason:

This is a correct statement, as the CNS is involved in higher cognitive functions such as memory, learning, reasoning, and emotions.

Choice D reason:

This is an incorrect statement, as this is the function of the PNS. The PNS consists of cranial and spinal nerves that connect the CNS to the rest of the body and transmit sensory and motor signals.