Correct Answer: C

Rationale: The correct answer is C: A thin, translucent membrane. In elderly patients, the tympanic membrane tends to become thinner and more translucent due to age-related changes. This is considered a normal finding as it is a common occurrence in older individuals. The other choices are incorrect because: A) Loss of high-tone frequency hearing is not a normal finding in an ear examination of an elderly patient, as age-related hearing loss typically affects high frequencies. B) Increased elasticity of the pinna is not a common age-related change and may indicate a different issue. D) A shiny pink tympanic membrane is not a typical finding in an elderly patient and could suggest inflammation or infection instead of a normal age-related change.

Correct Answer: B

Rationale: The correct answer is B (XI; asking the patient to shrug her shoulders against resistance). This is the correct choice because the nurse suspects damage to the spinal accessory nerve (CN XI), which innervates the trapezius and sternocleidomastoid muscles. Asking the patient to shrug her shoulders against resistance tests the function of the trapezius muscle, which is innervated by CN XI. This examination helps to assess the integrity of the nerve and its ability to innervate the muscle. Palpating the anterior and posterior triangles (choice A) is not specific to CN XI function. Percussing the sternomastoid and submandibular neck muscles (choice C) is related to CN XII, not CN XI. Assessing for a positive Romberg's sign (choice D) is not relevant to testing the function of CN XI.

Correct Answer: A

Rationale: The correct answer is A: An optic disc that is a yellow-orange colour. This is a normal finding because the optic disc typically appears yellow-orange due to the presence of nerve fibers. The yellow-orange color is due to the absence of blood vessels in this area. This is a normal anatomical characteristic of the optic disc. Option B is incorrect because blurred optic disc margins can indicate pathology such as papilledema. Option C is incorrect because the presence of pigmented crescents in the macular area can indicate a condition like myopic degeneration, not a normal finding. Option D is incorrect because the macula is normally located temporally, not nasally, to the optic disc.

Correct Answer: D

Rationale: The Romberg test assesses the maintenance of standing balance by having the patient stand with feet together, arms at the sides, and eyes closed. If the patient sways or loses balance, it may indicate proprioceptive deficits. Conductive hearing loss (A) is related to sound transmission issues in the outer or middle ear, not balance. Lateralization of hearing (B) relates to distinguishing sound direction. Sensorineural loss (C) involves inner ear or auditory nerve damage, not balance. Therefore, the correct answer is D as the Romberg test specifically evaluates standing balance.

Correct Answer: C

Rationale: The correct answer is C: Degeneration of nerves in the inner ear. This is likely the cause of the patient's hearing difficulties, as age-related degeneration of nerves in the inner ear can lead to difficulty distinguishing sounds and determining their direction. Atrophy of the apocrine glands (Choice A) and cilia becoming coarse and stiff (Choice B) are not related to hearing loss. Scarring of the tympanic membrane (Choice D) would affect sound conduction but not the perception of sound direction and clarity.