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. Which of the following solutions is routinely used to flush an IV device before and after the administration of blood to a client?

• A. 0.9% sodium chloride
• B. 5% dextrose in water solution
• C. Sterile water
• D. Heparin sodium

Correct answer: A

Rationale: The correct answer is 0.9% sodium chloride. Normal saline is 0.9% sodium chloride, which has the same osmolarity as blood and does not cause cell lysis. Choices 2 and 3, 5% dextrose in water solution and sterile water, are hypotonic solutions that can lead to cell lysis. Choice 4, heparin sodium, is an anticoagulant and is not used for flushing IV devices before and after blood administration.

3. While assisting with data collection, the client informs the nurse that he is having difficulty swallowing medications and food. The nurse gathers additional subjective data and documents that the client is experiencing which disorder?

• A. Pyrosis
• B. Anorexia
• C. Eructation
• D. Dysphagia

Correct answer: D

Rationale: The correct answer is 'Dysphagia.' Dysphagia is the term used to indicate difficulty swallowing, which can occur in disorders of the throat or esophagus. Anorexia refers to a loss of appetite, not difficulty swallowing. Eructation is the medical term for belching, not difficulty swallowing. Pyrosis is heartburn, a burning sensation in the esophagus and stomach caused by the reflux of gastric acid, not difficulty swallowing.

4. Which of the following statements, if made by the parents of a newborn, does not indicate a need for further teaching about cord care?

• A. "I should not put alcohol on my baby's cord 3-4 times a day."?
• B. "I should not put the baby's diaper on so that it covers the cord."?
• C. "I should call the physician if the cord becomes dark."?
• D. "I should wash my hands before and after I take care of the cord."?

Correct answer: B

Rationale: Parents should be taught not to cover the cord with a diaper to allow for air exposure and drying, preventing infection. The statement 'I should put alcohol on my baby's cord 3-4 times a day' indicates a need for further teaching as current recommendations do not include using alcohol on the cord, which can interfere with natural healing. While it is normal for the cord to turn dark as it dries, so the statement 'I should call the physician if the cord becomes dark' is accurate, it is not the best answer for this question. Washing hands before and after caring for the cord is important to prevent the transfer of pathogens, so this statement does not require further teaching.

5. A nurse is preparing to assess the fetal heart rate (FHR) of a client who is 14 weeks pregnant. Which piece of equipment does the nurse use to assess the FHR?

• A. Stethoscope
• B. Doppler transducer
• C. Fetoscope
• D. Pulse oximetry on the client and a fetoscope

Correct answer: B

Rationale: To assess the fetal heart rate of a client who is 14 weeks pregnant, the nurse should use a Doppler transducer. Fetal heart sounds can be heard with a fetoscope by 20 weeks of gestation. The Doppler transducer amplifies fetal heart sounds so that they are audible by 10 to 12 weeks of gestation, making it the most appropriate choice for this scenario. Fetal heart sounds cannot be heard with a stethoscope. Pulse oximetry is not used to auscultate fetal heart sounds, so it is an incorrect choice in this context.

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