A nurse is reinforcing teaching with a client who has tuberculosis (TB) and a prescription for isoniazid. Which of the following instructions should the nurse include?

Choice A reason: This is a vague and unhelpful response, because it does not provide any information or reassurance to the client who has a new diagnosis of MS. The nurse should explain the general course of MS and the possible variations among clients.

Choice B reason: This is a sympathetic but incomplete response, because it does not address the client's question or provide any information about the course of MS. The nurse should acknowledge the client's feelings and provide factual and realistic information.

Choice C reason: This is the best response, because it provides accurate and relevant information about the course of MS, which is a chronic and progressive disease that affects the central nervous system. MS can cause acute episodes of neurological symptoms, such as vision loss, numbness, weakness, or fatigue, which are followed by periods of remission, when the symptoms improve or disappear. The length and frequency of the episodes and remissions can vary among clients.

Choice D reason: This is a dismissive and unrealistic response, because it does not answer the client's question or respect the client's right to know about the course of MS. The nurse should not avoid the client's concerns or minimize the impact of the diagnosis. The nurse should help the client cope with the uncertainty and plan for the future.

Choice A reason: This is an incorrect instruction, because the client does not need to remain NPO, or nothing by mouth, before a standard EEG. The client can eat and drink normally, unless the provider instructs otherwise.

Choice B reason: This is an incorrect instruction, because the client should not take a sedative, or any other medication that can affect the brain activity, before a standard EEG. The client should take the usual medications, unless the provider instructs otherwise.

Choice C reason: This is the correct instruction, because the client should thoroughly shampoo hair prior to the EEG. The client should wash the hair with a mild shampoo and rinse well, without using any conditioner, gel, spray, or other hair products. This can help remove any oil, dirt, or residue that can interfere with the placement and function of the electrodes.

Choice D reason: This is an incorrect instruction, because the client should not take an additional dose of anticonvulsant medication before a standard EEG. The client should take the regular dose of anticonvulsant medication, unless the provider instructs otherwise.