A patient is especially worried about an area of skin on her feet that has turned white.
The health care provider has told her that her condition is vitiligo.
The nurse explains to her that vitiligo is:

Choice A rationale

The general survey is an overall assessment of a client's physical appearance, behavior, mobility, and neurological status. It provides a comprehensive overview of the client's health and well-being, making it the focus of the nurse's observations in this scenario.

Choice B rationale

Medical history includes past and current health conditions, surgeries, medications, and family health history. While important, it is not the focus of the nurse's immediate observations in this scenario.

Choice C rationale

Biographical data involves personal information such as age, gender, occupation, and marital status. While relevant to the client's health, it is not the primary focus of the nurse's observations in this scenario.

Choice D rationale

Social history includes information about the client's lifestyle, habits, and social environment. While valuable for understanding the client's overall health context, it is not the focus of the nurse's immediate observations in this scenario. .

Choice A rationale

The abducens cranial nerve (CN VI) controls the lateral rectus muscle of the eye, which is responsible for outward movement. It is not assessed using the Snellen visual acuity chart. The function of this nerve is tested through the evaluation of lateral eye movements.

Choice B rationale

The optic cranial nerve (CN II) is responsible for vision, including visual acuity and visual fields. It is assessed using the Snellen visual acuity chart to determine how well a person can see at various distances. This test evaluates the clarity and sharpness of vision, making CN II the correct answer.

Choice C rationale

The trochlear cranial nerve (CN IV) controls the superior oblique muscle, which helps with downward and inward eye movements. It is not assessed using the Snellen visual acuity chart but rather through the evaluation of eye movements and alignment.

Choice D rationale

The oculomotor cranial nerve (CN III) controls most of the eye's movements, including those of the superior, inferior, and medial rectus muscles, as well as the inferior oblique muscle. It is also responsible for controlling the pupil's response to light. The Snellen visual acuity chart does not assess the function of CN III, as it focuses on visual clarity and acuity.