Correct Answer: B

Rationale: The correct answer is B: This is a bifid uvula, which is a common occurrence in some Aboriginal groups. 1. A bifid uvula is a condition where the uvula is split or divided, which is a common variation seen in some Aboriginal populations. 2. Cleft palate is a different condition involving a gap in the roof of the mouth, not specifically related to Aboriginal people. 3. Uvular injury is not a common cause of a split uvula in children, so reporting to authorities is unnecessary. 4. Torus palatinus is a bony growth on the roof of the mouth and not related to a split uvula or specific to Aboriginal populations.

Correct Answer: D

Rationale: Clubbing of the fingernails is characterized by an increased angle between the nail base and the nail plate (usually 180 degrees or greater) and a spongy texture at the nail base. This is due to underlying tissue changes associated with conditions like lung disease. Choice D is correct as it accurately describes the characteristic findings of clubbing. Choices A, B, and C do not align with clubbing features. Choice A describes tenderness and firmness, not sponginess and increased angle. Choice B mentions a convex profile and ridges, which are not specific to clubbing. Choice C includes an angle of 150 degrees, which is less than the typical angle seen in clubbing.

Correct Answer: C

Rationale: The correct answer is C because as individuals age, there is a natural decrease in skin elasticity, subcutaneous fat, and moisture content in the skin. These factors contribute to the bones becoming more noticeable in the face. Choice A is incorrect because diets low in protein and high in carbohydrates do not directly cause enlargement of facial bones. Choice B is incorrect as the use of a specific moisturizer does not directly impact the visibility of facial bones. Choice D is incorrect because facial skin actually loses elasticity with age, leading to less taut skin and more prominent bones.

Correct Answer: B

Rationale: The correct answer is B: assess for middle ear infection as a possible cause. Sensorineural hearing loss is usually caused by damage to the inner ear or the nerve pathway to the brain. Middle ear infection can sometimes lead to conductive hearing loss, but it's important to rule out this possibility during assessment. Speaking loudly (A) is not effective for sensorineural hearing loss. Asking about medications (C) may be relevant but not as crucial as assessing for a possible cause. Looking for external ear obstruction (D) is more relevant for conductive hearing loss, not sensorineural.

Correct Answer: A

Rationale: The correct answer is A: otosclerosis. Otosclerosis is a condition where abnormal bone growth in the middle ear causes hearing loss. In this case, the patient's symptoms of progressive hearing loss improving with louder sounds suggest conductive hearing loss, which is commonly seen in otosclerosis. Other choices are incorrect because presbycusis is age-related hearing loss, trauma to the bones would typically result in sudden hearing loss, and frequent ear infections are more likely to cause temporary hearing loss rather than progressive loss.