The physician has diagnosed a tracheal shift in a patient. The nurse is aware that this means that the patient's trachea is:

Correct Answer: D

Rationale: The correct answer is D because tracheal shift due to thyroid enlargement occurs when the thyroid gland enlarges and displaces the trachea to the opposite side. This is a common clinical finding in conditions like a goiter. Other choices are incorrect because: A is incorrect as tracheal shift is not related to systole; B is incorrect as tracheal shift is typically caused by a mass pushing the trachea; C is incorrect as pleural adhesions don't typically cause tracheal shift.

Correct Answer: D

Rationale: The correct answer is D because a bruit in a 3-year-old child, especially over the temporal area, is not a normal finding and could indicate a serious underlying issue such as an arteriovenous malformation or other vascular abnormality. Stopping the examination and notifying the physician is crucial for further evaluation and management. A: Continuing the examination is not appropriate as the bruit should prompt further investigation. B: Checking again in 1 hour is unnecessary delay in addressing a potentially serious issue. C: Notifying the parents alone without medical intervention may delay necessary evaluation and treatment.

Correct Answer: C

Rationale: The correct answer is C because the trigeminal (CN V) and the trochlear (CN IV) nerves are indeed stimulated when the outer surface of the eye is stimulated. The trigeminal nerve is responsible for the sensation of touch in the face and controls the muscles involved in chewing. The trochlear nerve controls the superior oblique muscle of the eye, which helps with downward and inward eye movements. Therefore, when the outer layer of the eye is touched or stimulated, these nerves are activated to convey the sensation to the brain. Choices A, B, and D are incorrect: A: The outer layer of the eye is not particularly sensitive to touch compared to other areas like the cornea or conjunctiva. B: The outer layer of the eye is not darkly pigmented; the pigmented layer is actually the uvea inside the eye. D: The visual receptive layer of the eye, known as the retina, is located deeper within the eye, not

Correct Answer: A

Rationale: Visual accommodation refers to the ability of the eye to adjust focus when shifting gaze between objects at different distances. The correct answer is A, pupillary constriction when looking at a near object, as this is a key component of visual accommodation. When looking at a near object, the eye needs to adjust its focus by constricting the pupil to allow more depth of field and clearer vision. This process helps in bringing near objects into focus. Choices B, C, and D are incorrect: B: Pupillary dilation when looking at a far object is not related to visual accommodation, as the pupil dilates in low light conditions to allow more light to enter the eye. C: Changes in peripheral vision in response to light is not related to visual accommodation, as peripheral vision refers to the ability to see objects outside the direct line of sight. D: Involuntary blinking in the presence of bright light is a protective reflex to shield the eyes from excessive light and is not directly related to visual

Correct Answer: B

Rationale: The correct answer is B: A dark retinal background. This is because individuals of African descent typically have a higher concentration of melanin in their eyes, resulting in a darker retinal background. This can affect the appearance of the fundus during eye examinations. Incorrect choices: A: Increased night vision - Night vision is not directly influenced by melanin levels in the eyes and is more related to the function of rods and cones in the retina. C: Increased photosensitivity - Melanin provides some protection against UV light, so individuals with darker retinas may have lower photosensitivity. D: Narrowed palpebral fissures - Palpebral fissures refer to the opening between the eyelids and are not typically influenced by melanin levels in the eyes.