A client's chart indicates that they are legally blind. Which of the following is the definition of legally blind?

Choice A Reason: Educating the client about the therapy is an important action by the nurse, but not the priority one. The nurse should explain the purpose, procedure, benefits, and risks of hydrotherapy to the client before starting it, but only after ensuring their comfort and pain relief.

Choice B Reason: Providing analgesics after therapy ends is not enough, as the nurse should provide them before and during therapy as well. Hydrotherapy involves cleansing and debriding of burn wounds with water jets or whirlpools, which can be very painful and stressful for the client.

Choice C Reason: This is the correct choice. Providing analgesics before therapy begins is the priority action by the nurse, as it reduces pain and anxiety for the client and facilitates wound healing. The nurse should assess the client's pain level and administer appropriate analgesics at least 30 minutes before hydrotherapy.

Choice D Reason: Ensuring there are clean supplies is an essential action by the nurse, but not the priority one. The nurse should use sterile or clean equipment and solutions for hydrotherapy to prevent infection and contamination of burn wounds, but only after ensuring their comfort and pain relief.

Choice A reason: This is correct because avoiding swimming underwater can help prevent the worsening of Meniere's disease. Meniere's disease is a disorder of the inner ear that causes episodes of vertigo, tinnitus, hearing loss, and fullness in the ear. Swimming underwater can increase pressure in the ear and trigger an attack. The nurse should advise the client to avoid activities that involve changes in altitude or pressure, such as flying, diving, or climbing.
Choice B reason: This is incorrect because wearing earphones when in crowded places can worsen Meniere's disease. Earphones can increase noise exposure and damage hearing, which is already impaired by Meniere's disease. The nurse should advise the client to avoid loud noises and use hearing aids if needed.
Choice C reason: This is incorrect because keeping eyes open during an acute attack can increase vertigo and nausea. Vertigo is a sensation of spinning or moving when still, which can be caused by Meniere's disease. Keeping eyes open can make vertigo worse by creating a visual mismatch with vestibular signals from the inner ear. The nurse should advise the client to close their eyes or focus on a stationary object during an attack.
Choice D reason: This is correct because sitting or lying down if whirling occurs can help prevent falls or injuries due to vertigo. Whirling is another term for vertigo, which can affect balance and coordination. Sitting or lying down can reduce movement and stabilize posture during an attack. The nurse should advise
the client to avoid driving or operating machinery when experiencing vertigo.
Choice E reason: This is correct because we do not know the exact cause of Meniere's disease. Meniere's disease is thought to be related to abnormal fluid balance or pressure in the inner ear, but what triggers this condition is unknown. The nurse should educate the client about possible risk factors, such as genetics, infections, allergies, autoimmune disorders, or head trauma, but also acknowledge the uncertainty and variability of the disease.
Choice F reason: This is incorrect because damage to the ear from excess noise is not the cause of Meniere's disease. Damage to the ear from excess noise can cause noise-induced hearing loss, which is a type of sensorineural hearing loss that affects the cochlea or the auditory nerve. Meniere's disease is a type of mixed hearing loss that affects both the cochlea and the middle ear. The nurse should not confuse or misinform the client about the cause of their condition.