Health Promotion and Maintenance NCLEX PN Questions Related

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A nurse is preparing to screen a client's vision with the use of a Snellen chart. The nurse uses which technique?

  • A. Tests the right eye, then tests the left eye, and finally tests both eyes together
  • B. Assesses both eyes together, then assesses the right and left eyes separately
  • C. Asks the client to stand 40 feet from the chart and read the largest line on the chart
  • D. Asks the client to stand 40 feet from the chart and read the line that can be read 200 feet away by someone with unimpaired vision
Correct Answer: A

Rationale: To test visual acuity with the use of a Snellen chart, the nurse places the chart in a well-lit spot at the client's eye level, with the client positioned exactly 20 feet from the chart. The client shields one eye at a time with an opaque card during the test. After testing each eye separately, both eyes are assessed together. The client is asked to read the smallest line of letters visible and encouraged to read the next smallest line as well. Therefore, option A is correct as it describes the correct technique of testing one eye at a time before assessing both eyes together. Option B is incorrect as it assesses both eyes together first, which is not the standard procedure. Options C and D are incorrect as they suggest standing 40 feet from the chart, which contradicts the standard distance of 20 feet for a Snellen chart test.