A nurse is caring for a client who reports a throbbing headache after a lumbar puncture. Which of the following actions is most likely to facilitate resolution of the headache?

A. Analgesics may help relieve discomfort but do not address the cause of the post–lumbar puncture headache (CSF leakage). B. Clients are usually kept flat or slightly elevated to reduce CSF leakage and headache. C. This may provide comfort if the client has photophobia, but it does not resolve the underlying issue. D. Increased fluids, especially caffeine-containing fluids, help restore CSF volume and facilitate resolution of the headache.