Correct Answer: A

Rationale: The correct answer is A: No sensation. When the sinus areas are normal, the patient should not feel any discomfort or pain upon palpation. This indicates that there is no inflammation or infection present. Choices B, C, and D are incorrect because feeling firm pressure, experiencing pain during palpation, or feeling pain behind the eyes would suggest abnormalities in the sinuses, such as congestion, inflammation, or infection. Therefore, the absence of any sensation is the expected response when the sinuses are normal.

Correct Answer: D

Rationale: The correct answer is D: increased intracranial pressure. Papilledema is swelling of the optic disc due to increased pressure in the brain. It is a sign of serious conditions like brain tumors, head trauma, or hydrocephalus. The other choices are incorrect because retinal detachment presents with visual disturbances and floaters (A), diabetic retinopathy with retinal damage due to diabetes (B), and acute-angle glaucoma with sudden eye pain and blurred vision (C). Papilledema specifically indicates increased intracranial pressure, making choice D the correct answer.

Correct Answer: B

Rationale: The correct answer is B because unequal pupillary constriction in response to light is abnormal and may indicate nerve damage or neurological issues. A: Decrease in tear production is common with age. C: Arcus senilis is a normal age-related change. D: Loss of hair at the outer line of the eyebrows is also a common age-related change.

Correct Answer: A

Rationale: The correct answer is A: Age-related hearing loss begins in the mid-40s. This is because presbycusis, or age-related hearing loss, typically starts around the mid-40s due to natural aging processes affecting the inner ear. Choice B is incorrect as the progression of hearing loss can vary, being gradual for some individuals but not necessarily slow for everyone. Choice C is incorrect as high-frequency tone loss, not low-frequency, is commonly associated with aging. Choice D is incorrect as difficulty hearing consonants is more related to specific types of hearing loss, not solely age-related changes.

Correct Answer: D

Rationale: The correct answer is D. At 18 months, it is expected for a child to have erupted around 16 deciduous teeth. The rationale for this answer is based on dental development milestones. By age 3, most children should have their full set of 20 primary teeth. Therefore, the nurse should inform the mother that it is normal for an 18-month-old to have around 16 teeth. Choice A is incorrect as comparing the mother's teeth at that age is irrelevant to the child's dental development. Choice B is incorrect because all 20 deciduous teeth should be present by age 3, not 4. Choice C is incorrect as having 12 teeth at 18 months is below the expected number of erupted teeth for that age.