The nurse educator asks the student nurse to explain the most common causes of blindness in the United States. Which of the following options will the student nurse select as one of the top causes of blindness?

Choice A reason: This is incorrect because education about mastoidectomy is not relevant for a client with an upper respiratory infection. Mastoidectomy is a surgical procedure that removes part or all of the mastoid bone behind the ear, which can become infected or inflamed due to chronic or recurrent middle ear infections. The nurse should assess the client's ear for signs of mastoiditis, such as swelling, tenderness, or redness behind the ear, but mastoidectomy is not a common or first-line treatment for upper respiratory infection.
Choice B reason: This is incorrect because a referral for a hearing test is not necessary for a client with an upper respiratory infection. Hearing test is a diagnostic tool that measures how well a person can hear different sounds at different frequencies and intensities. The nurse should ask the client about any changes in hearing or tinnitus, which are possible complications of upper respiratory infection, but a hearing test is not a routine or urgent intervention for this condition.
Choice C reason: This is correct because education on the administration of oral antibiotics can help treat an upper respiratory infection. Antibiotics are drugs that kill or inhibit bacteria that cause infections. Upper respiratory infections can be caused by various pathogens, such as viruses, bacteria, or fungi, but bacterial infections are more likely to cause fever, otalgia, or purulent nasal drainage. The nurse should instruct the client on how to take antibiotics as prescribed, such as dosage, frequency, duration, side effects, and interactions.
Choice D reason: This is incorrect because a prescription for an antifungal cream is not appropriate for a client

Choice A Reason: The test is not inconclusive, but rather positive for conductive hearing loss. The Weber test involves placing a vibrating tuning fork on the center of the forehead and asking the client which ear hears the sound louder. It can help differentiate between conductive and sensorineural hearing loss.

Choice B Reason: This is the correct choice. The client has conductive hearing loss, which is a type of hearing loss that occurs when sound waves are blocked or reduced in the outer or middle ear. It can be caused by earwax, infection, fluid, perforation, or trauma. In conductive hearing loss, the Weber test shows lateralization to the affected ear, meaning the sound is heard louder in that ear.

Choice C Reason: The client does not have normal hearing, but rather conductive hearing loss. In normal hearing, the Weber test shows no lateralization, meaning the sound is heard equally in both ears.

Choice D Reason: The client does not have sensorineural hearing loss, but rather conductive hearing loss. Sensorineural hearing loss is a type of hearing loss that occurs when there is damage to the inner ear or auditory nerve. It can be caused by aging, noise exposure, disease, or drugs. In sensorineural hearing loss, the Weber test shows lateralization to the unaffected ear, meaning the sound is heard louder in that ear.