A nurse is caring for a client who is using a continuous passive motion (CPM) machine following a total knee arthroplasty. Which of the following actions should the nurse take?

Choice A reason: Instructing the client to expect tingling in their extremities is not a standard post-lumbar puncture care instruction. Tingling may be a sign of nerve irritation or damage, which is not an expected outcome and should be reported if it occurs.

Choice B reason: Measuring blood glucose every 2 hours is not related to post-lumbar puncture care unless the client has a specific condition that requires such monitoring. Post-lumbar puncture care focuses on preventing complications such as headaches and monitoring for signs of infection or bleeding.

Choice C reason: Limiting the client's fluid intake is not advised following a lumbar puncture. In fact, increasing fluid intake can help prevent the occurrence of post-lumbar puncture headaches, which are a common complication. Adequate hydration helps replenish cerebrospinal fluid and reduce headache severity.

Choice D reason: Instructing the client to lie flat is the correct action. After a lumbar puncture, it is recommended that the client lies flat for several hours to prevent the leakage of cerebrospinal fluid from the puncture site, which can lead to a spinal headache. Lying flat helps maintain normal cerebrospinal fluid pressure and reduces the risk of headache.

Choice A reason: Placing the client's bed at the lowest height is a safety intervention that minimizes the risk of injury from falls, which is particularly important for clients with dementia who may have impaired mobility or judgment. Lowering the bed height can reduce the severity of an injury if a fall does occur. Additionally, it can facilitate easier access for the client to get in and out of bed with less assistance.

Choice B reason: Requesting a prescription for a nightly sedative is not typically recommended as a first-line intervention for clients with dementia. Sedatives can increase the risk of confusion, falls, and can worsen cognitive impairment in the elderly. Non-pharmacological approaches are preferred for managing sleep disturbances in dementia patients.

Choice C reason: Assisting the client with toileting at least once every 4 hours is an important intervention to maintain hygiene and comfort, as well as to prevent urinary tract infections and skin breakdown. However, the frequency of toileting assistance should be individualized based on the client's needs and level of incontinence.

Choice D reason: Turning off all lights in the client's room at night is not advisable as some clients with dementia may experience increased confusion or agitation in complete darkness. A nightlight or low-level lighting can provide a safer environment and help to orient the client during nighttime hours.