Nursing Elites

1. 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.

2. After undergoing gastric resection, which of the following meals is most likely to cause rapid emptying of the stomach?

• A. a high-protein meal
• B. a high-fat meal
• C. a large meal regardless of nutrient content
• D. a high-carbohydrate meal

Correct answer: D

Rationale: After gastric resection, meals high in carbohydrates are more likely to cause rapid emptying of the stomach. Carbohydrates stimulate the release of gastrin, which accelerates gastric emptying. In contrast, high-fat and high-protein meals tend to delay gastric emptying. While a large meal can slow down gastric emptying, the specific nutrient content, such as high carbohydrates, plays a significant role in promoting rapid emptying. Therefore, a high-carbohydrate meal is the correct choice as it is most likely to lead to rapid gastric emptying compared to the other options.

3. What causes an older female client's hair to turn gray?

• A. ''A loss of melanin occurs in the normal aging process.''
• B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
• C. ''The skin on the scalp becomes thin, causing moisture to escape.''
• D. ''It is caused by hereditary factors.''

Correct answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.

4. When a couple experiencing infertility presents for a fertility workup, which of the following procedures should the nurse prepare the couple to have first?

• A. Hysterosalpingography
• B. Semen analysis
• C. Endometrial biopsy
• D. Transvaginal ultrasound

Correct answer: B

Rationale: Semen analysis is the most appropriate initial diagnostic test for a couple experiencing infertility. It is the least invasive of the listed tests, and since male factor infertility contributes to around 35% of cases, assessing semen parameters early is crucial. Hysterosalpingography is a radiographic test to evaluate tubal patency and uterine cavity abnormalities. Endometrial biopsy assesses endometrial receptivity post-ovulation. Transvaginal ultrasound is mainly used in infertility treatment to monitor follicle development, oocyte maturity, and luteal phase defects. Choices A, C, and D are more invasive, require specialized expertise, and are costlier. If semen analysis yields normal results, further tests may be warranted.

5. The LPN participates in a home visit for a client with Type 2 Diabetes who has been taking Metformin for 3 years. The client states that for the past 3 months, they have been trying a vegan diet and experiencing fatigue, confusion, and mood changes. What is a likely cause of the new symptoms?

• A. vitamin B12 deficiency
• B. chronic hypoglycemia
• C. vitamin D deficiency
• D. increased tolerance to Metformin

Correct answer: A

Rationale: The correct answer is vitamin B12 deficiency. Long-term use of Metformin can lead to vitamin B12 deficiency, and a vegan diet is low in vitamin B12. Symptoms of vitamin B12 deficiency include anemia, fatigue, confusion, and mood changes. Chronic hypoglycemia is unlikely in a client with Type 2 Diabetes who has been taking Metformin as it typically causes hyperglycemia. Vitamin D deficiency usually presents with symptoms related to bones and muscles, not confusion and mood changes. Increased tolerance to Metformin does not explain the client's new symptoms, which are more indicative of a nutritional deficiency like vitamin B12.

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