Nursing Elites

1. A preschooler has successfully completed the test item 'counts 5 blocks' on the Denver II test. This pass is evidence of which of the following developmental concepts?

• A. centration
• B. causality
• C. nonreversibility
• D. conservation

Correct answer: D

Rationale: The ability of a preschooler to move five blocks to a piece of paper and state there are five blocks on the paper is evidence that the preschooler has the ability of conservation. This concept refers to the fact that the quantity of something doesn't change just because the shape, contour, and so on has changed. Five blocks are still five blocks, whether they are lying beside the paper, stacked on the paper, or moved to the paper. Centration is the ability to concentrate on one feature of a situation while neglecting all other aspects. Causality is based on the sequence of events, one event ordinarily following another. Non-reversibility refers to the inability of preschoolers to reverse their operations. They are only able to think forward, not retrace or reverse their thought processes.

2. Ms. Petty is having difficulty falling asleep. Which of the following measures promote sleep?

• A. exercising vigorously for 20 minutes each night beginning at 9:30 p.m.
• B. taking a cool shower and drinking a hot cup of tea
• C. watching TV nightly until midnight
• D. getting a back rub and drinking a glass of warm milk

Correct answer: D

Rationale: The correct answer is getting a back rub and drinking a glass of warm milk. These measures are relaxation techniques that can help promote sleep by calming the body and mind. Exercising vigorously right before bedtime, as mentioned in choice A, can increase arousal and make it harder to fall asleep. Choice B, taking a cool shower and drinking a hot cup of tea, involves temperature changes that might not be conducive to sleep. Watching TV until midnight, as in choice C, exposes the individual to blue light and mental stimulation, both of which can disrupt the natural sleep-wake cycle.

3. A 2-year-old child diagnosed with HIV comes to a clinic for immunizations. Which of the following vaccines should the healthcare provider expect to administer in addition to the scheduled vaccines?

• A. pneumococcal vaccine
• B. hepatitis A vaccine
• C. Lyme disease vaccine
• D. typhoid vaccine

Correct answer: A

Rationale: The correct answer is the pneumococcal vaccine. Children with HIV are at increased risk of pneumococcal infections, so the pneumococcal vaccine is recommended as a supplemental vaccine for them. The hepatitis A vaccine is not routinely given to HIV-positive children unless they have other risk factors for hepatitis A. Lyme disease vaccine is for individuals at risk for Lyme disease, not routinely recommended for a 2-year-old. Typhoid vaccine is typically given to individuals traveling to endemic areas or working in settings with potential exposure to Salmonella typhi, not a routine vaccine for a 2-year-old with HIV.

4. If Ms. Barrett's distance vision is 20/30, which of the following statements is true?

• A. The client can read from 20' what a person with normal vision can read at 30'.
• B. The client can read from 30' what a person with normal vision can read at 20'.
• C. The client can read the entire chart from 30'.
• D. The client can read the chart from 20' with the left eye and from 30' with the right eye.

Correct answer: A

Rationale: When Ms. Barrett's distance vision is measured as 20/30, it means that she can read from 20 feet away what a person with normal vision can read at 30 feet. The numerator (20) represents the distance in feet between the chart and the client, while the denominator (30) indicates the distance at which a normal eye can read the chart. In this case, Ms. Barrett's vision is slightly worse than normal, as she needs to be closer to the chart to read it clearly. Therefore, choice A is correct. Choices B, C, and D are incorrect: Choice B reverses the distances, Choice C assumes the client can read the entire chart from 30 feet, and Choice D introduces information not related to the 20/30 measurement.

5. Which reported symptom(s) would indicate a client with Addison's disease has received too much fludrocortisone (Florinef) replacement?

• A. Oily skin and hair
• B. Weight gain of 6 pounds in one week
• C. Loss of muscle mass in arms and legs
• D. Increased blood glucose level

Correct answer: B

Rationale: Fludrocortisone replacement in Addison's disease involves mimicking the action of aldosterone, a mineralocorticoid that causes the retention of sodium and water. Excessive retention of sodium and water can lead to weight gain. Therefore, a sudden increase in weight, especially a significant amount like 6 pounds in one week, can indicate an overdose of fludrocortisone. Choices A, C, and D are incorrect because oily skin and hair, loss of muscle mass, and increased blood glucose levels are not typically associated with excessive fludrocortisone replacement.

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