A client is weak and drowsy after a lumbar puncture. The nurse caring for the client knows that what priority nursing intervention should be provided after a lumbar puncture?

Choice A rationale

Cerebrospinal fluid (CSF) does not produce cerebral neurotransmitters. Neurotransmitters are produced by neurons in the brain and nervous system.

Choice B rationale

CSF provides a protective barrier to some extent, but its primary function is not to act as a barrier to bacteria. The blood-brain barrier primarily serves this function.

Choice C rationale

CSF helps maintain a stable environment in the central nervous system but is not primarily an insulator for maintaining constant temperature. Its thermal properties are secondary.

Choice D rationale

The primary function of CSF is to cushion and protect the brain and spinal cord from mechanical injury. It also helps maintain the brain's buoyancy and provides a stable environment for the central nervous system.

Choice A rationale

Positioning the client flat as directed is the priority intervention after a lumbar puncture to prevent cerebrospinal fluid (CSF) leakage, which can lead to a post-lumbar puncture headache. This position helps maintain normal CSF pressure and promotes sealing of the puncture site.

Choice B rationale

Leaving the client to rest without performing any assessments is not appropriate, as continuous monitoring is necessary to detect any complications such as bleeding or changes in neurological status. Regular assessments help ensure timely intervention if issues arise.

Choice C rationale

Providing caffeine-rich drinks is sometimes recommended to alleviate headaches caused by CSF leakage post-lumbar puncture. However, it is not the priority intervention immediately after the procedure, which focuses on positioning and monitoring.

Choice D rationale

Avoiding analgesic agents is incorrect. Pain management is an important aspect of care post-lumbar puncture, and appropriate analgesics should be administered as needed. The focus should be on positioning and monitoring, not withholding pain relief.