Correct Answer: D

Rationale: The correct answer is D because a normal pupillary light reflex involves the constriction of both pupils in response to bright light. This reflex is controlled by the autonomic nervous system, specifically the parasympathetic nervous system. When light is detected by the retina, signals are sent to the brain which then triggers the constriction of both pupils to reduce the amount of light entering the eye. Choices A, B, and C are incorrect because they do not accurately describe the pupillary light reflex. Vision convergence, light reflection, and focusing the image at the center of the pupil are not directly related to the pupillary light reflex.

Correct Answer: C

Rationale: The correct answer is C because the frontal sinuses are indeed fairly well developed at birth. This is true as the frontal sinuses start developing around the age of 7-8 years but are present in a rudimentary form at birth. This is because the frontal bone grows rapidly in the first few years of life, allowing for the development of the frontal sinuses. Choice A is incorrect because the sphenoid sinuses are not at full size at birth; they continue to develop throughout childhood. Choice B is incorrect as the maxillary sinuses reach full size around the teenage years, not after puberty. Choice D is incorrect as the frontal sinuses are also present at birth, along with the maxillary and ethmoid sinuses.

Correct Answer: D

Rationale: The correct answer is D: trichotillomania, which may be caused by her child habitually twirling her hair in an absent-minded way. Trichotillomania is a psychological disorder where individuals have an irresistible urge to pull out their hair. In this case, the broken-off, stublike hair and irregularly shaped patches on the child's head are indicative of hair pulling rather than a medical condition like folliculitis (choice A), traumatic alopecia (choice B), or tinea capitis (choice C). The child's hair being kept very short does not align with the characteristic of these conditions, making trichotillomania the most likely explanation.

Correct Answer: C

Rationale: The correct answer is C: at the level of the C7 vertebra. The vertebra prominens refers to the spinous process of the C7 vertebra, which is the most prominent bony landmark at the base of the neck. Assessing this area allows the nurse to accurately locate and evaluate tenderness reported by the physician. Choices A, B, and D are incorrect as they do not correspond to the location of the vertebra prominens. Option A is too high, above the diaphragm; option B is too low, lateral to the knee cap; and option D is too low, at the level of the T11 vertebra.

Correct Answer: C

Rationale: The correct answer is C: tinnitus. Tinnitus is the perception of sound without an external source, often described as ringing, buzzing, or hissing. In this case, the patient reporting a buzzing sound aligns with tinnitus. Vertigo (A) is a sensation of spinning or dizziness, not a sound perception. Pruritus (B) is itching, not a sound perception. Cholesteatoma (D) is a benign growth in the middle ear, not specifically related to sound perception. Therefore, tinnitus is the most appropriate choice based on the patient's symptom of hearing a buzzing sound.