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.

Answer and Explanation

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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Correct Answer is A

Explanation

Choice a reason:
A BMI of 27 falls into the 'Overweight' category according to the standard BMI classification. The 'Overweight' range is defined as a BMI of 25 to 29.9. This indicates that the person's weight is higher than what is considered healthy for a given height.

Choice b reason:
'Obesity Class I' is characterized by a BMI of 30 to 34.9. Since the client's BMI is 27, it does not reach the threshold for this category.

Choice c reason:
The 'Normal weight' category ranges from a BMI of 18.5 to 24.9. With a BMI of 27, the client exceeds the upper limit of the normal weight range.

Choice d reason:
The term 'Obesity' generally refers to a BMI of 30 or higher, which encompasses Obesity Class I, II, and III. Since the client's BMI is 27, it is below the obesity range.

A. Oral mucosa B. Ear lobes C. Soles of the feet D. Conjunctivae

Correct Answer is A

Explanation

Choice a reason:
The oral mucosa is the most reliable area to evaluate for central cyanosis in a client with asthma. Central cyanosis reflects a decrease in arterial oxygenation and is best assessed where the blood flow is high and the skin is thin, which is the case with the oral mucosa. It is less likely to be affected by peripheral factors such as temperature and is therefore a more accurate indicator of oxygen saturation in the central circulation.

Choice b reason:
While ear lobes can show signs of cyanosis, they are not the most reliable indicator of central cyanosis because they are more prone to peripheral cyanosis. Peripheral cyanosis can occur in the ear lobes due to local vasoconstriction or decreased blood flow, which may not reflect central oxygenation levels.

Choice c reason:
The soles of the feet are not a reliable indicator of central cyanosis, especially in a client with asthma. The skin on the soles is thicker and has less blood flow compared to the oral mucosa, making it a poor site for assessing central cyanosis. Additionally, the soles can be affected by peripheral factors like pressure and temperature.

Choice d reason:
Conjunctivae are not the most reliable indicator of central cyanosis. While they can show signs of cyanosis, the assessment can be affected by environmental factors and the presence of blood vessels in the conjunctiva that may not accurately reflect central oxygenation levels.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Using the client's height of 72 inches and weight of 200 lbs, the nurse calculates the BMI. A BMI of 27 indicates which category for this patient?

Correct Answer is A

Explanation

A nurse is assessing a client who has asthma. Which of the following areas should the nurse evaluate as the most reliable indicator of central cyanosis?

Correct Answer is A

Explanation

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