What eye function is the nurse preparing to assess when the client is asked to stand 20 feet from a specific chart that is mounted on the examination room wall?
Peripheral vision.
External eye structures.
Distant vision.
Near vision.
The Correct Answer is C
Choice A reason:
Peripheral vision is the ability to see objects and movement outside of the direct line of vision. This type of vision is assessed using different methods, such as confrontation visual field testing, where the examiner moves objects into the patient's side vision from different angles. Standing 20 feet away from a chart would not be the appropriate method to assess peripheral vision.
Choice B reason:
The assessment of external eye structures involves examining the physical appearance and condition of the eyelids, sclera, conjunctiva, and surrounding areas. This is typically done at a close range and does not require the patient to stand at a distance from a chart. The nurse would inspect these structures directly, often with the aid of a penlight for better visibility.
Choice C reason:
Distant vision is the ability to see objects far away, and it is what the nurse is preparing to assess when the client is asked to stand 20 feet from a chart. This distance is standard for the Snellen eye chart, which is used to measure visual acuity. The chart has rows of letters that decrease in size, and the patient is asked to read the smallest line of letters they can see clearly. The Snellen chart is the most common method used by eye doctors to measure visual acuity.
Choice D reason:
Near vision is the ability to see objects that are close to the eyes clearly. It is assessed using different charts, such as the Jaeger eye chart, which contains blocks of text in various type sizes. The patient is asked to read the text at a close range, typically around 14 inches, not 20 feet. Therefore, standing 20 feet away from a chart would not be the method to assess near vision.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason:
Facial expression is an important aspect of the general survey as it can provide clues about a patient's emotional state and possible pain. However, it is not directly related to the patient's level of consciousness. After a motor vehicle crash, assessing facial expression is crucial to identify any signs of distress, trauma, or neurological impairment.
Choice B reason:
Level of consciousness is a critical component of the general survey, especially in the context of trauma or potential neurological injury. It refers to the patient's awareness and responsiveness to the environment. Assessing the level of consciousness involves determining if the patient is awake, alert, and oriented to time, place, and person, which is essential for establishing a baseline cognitive function and detecting any changes that may indicate deterioration or improvement in their condition.
Choice C reason:
Posture, gait, motor activity, and speech are assessed to evaluate the musculoskeletal and neurological systems. While these are important in the context of a motor vehicle crash, they are not specifically related to the level of consciousness. These assessments help identify any deficits that may result from injuries sustained during the crash, such as fractures, dislocations, or neurological damage affecting movement and coordination.
Choice D reason:
The apparent state of health is a broad assessment that includes the patient's overall appearance and any signs that may indicate acute or chronic illness. In the emergency setting, this may involve observing for signs of trauma, shock, or other life-threatening conditions. While it is an essential part of the general survey, it is not specifically focused on the level of consciousness but rather on the patient's general well-being and any obvious health concerns.
Correct Answer is B
Explanation
Choice A Reason:
Tracheal sounds are harsh, high-pitched breath sounds typically heard over the trachea in the neck. They are not expected to be heard over the peripheral lung fields of a young adult during a routine lung auscultation.
Choice B Reason:
Vesicular breath sounds are the normal sounds heard over most of the lung fields. They are characterized by a soft, low-pitched, rustling sound during inhalation and are softer during exhalation. These sounds are created by air moving through the smaller airways such as the bronchioles and alveoli.
Choice C Reason:
Bronchovesicular sounds are heard over the major bronchi and are characterized by a moderate pitch and intensity. They are typically heard between the first and second intercostal spaces at the sternal border anteriorly and between the scapulae posteriorly, not over most of the lung fields.
Choice D Reason:
Bronchial breath sounds are high-pitched and louder than vesicular sounds, with a hollow quality, and are normally heard over the manubrium. If heard over the peripheral lung fields, they may indicate lung consolidation or other abnormalities.
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