Nursing Elites

1. Which statement correctly explains the etiology of Down syndrome?

• A. There is an extra chromosome on the 21st pair.
• B. There is a missing chromosome on the 21st pair.
• C. There are two pairs of the 21st chromosome.
• D. The 21st chromosome pair is missing.

Correct answer: A

Rationale: The correct answer is A: 'There is an extra chromosome on the 21st pair.' Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21. This additional genetic material leads to the characteristics associated with Down syndrome. Choices B, C, and D are incorrect because Down syndrome is not due to a missing chromosome or having two pairs of the 21st chromosome; it results from the presence of an extra chromosome on the 21st pair.

2. A client reports new onset hearing loss bilaterally after taking a medication with known ototoxic effects. Which type of hearing loss should the nurse suspect?

• A. Conductive
• B. Sensorineural
• C. Mixed
• D. Central

Correct answer: B

Rationale: The correct answer is B: Sensorineural. Ototoxic medications can lead to sensorineural hearing loss by affecting the inner ear or auditory nerve. Conductive hearing loss is related to issues in the middle or outer ear, not typically caused by ototoxic medications. Mixed hearing loss is a combination of conductive and sensorineural components. Central hearing loss is related to the central nervous system, not commonly caused by ototoxic medications. Therefore, in this case, the nurse should suspect sensorineural hearing loss.

3. A client with urolithiasis is preparing for discharge after lithotripsy. Which intervention should the nurse include in the client's postoperative discharge instructions?

• A. Report when hematuria becomes pink-tinged
• B. Use incentive spirometer
• C. Restrict physical activities
• D. Monitor urinary stream for a decrease in output

Correct answer: D

Rationale: After lithotripsy, monitoring the urinary stream for a decrease in output is essential to identify any potential complications such as urinary retention or obstruction. Reporting pink-tinged hematuria is important, but monitoring the urinary stream for a decrease in output takes precedence as it directly assesses renal function and potential complications. Using an incentive spirometer is not directly related to post-lithotripsy care. Restricting physical activities may be necessary initially but is not the priority compared to monitoring urinary output.

4. When conducting a class for parents about sudden infant death syndrome (SIDS), the nurse instructs the class that the infant should be placed in which position to sleep?

• A. Right side-lying
• B. Left side-lying
• C. Prone
• D. Supine

Correct answer: D

Rationale: The correct answer is D, supine. The American Academy of Pediatrics recommends placing infants on their back, or supine, to sleep as it has been shown to reduce the risk of SIDS. Choices A, B, and C are incorrect because placing infants on their right side, left side, or prone (on their stomach) respectively are not recommended sleeping positions due to the increased risk of SIDS associated with those positions.

5. A client with rheumatoid arthritis is prescribed methotrexate. Which instruction should the nurse include in the teaching plan?

• A. Avoid taking folic acid supplements
• B. Report any signs of infection immediately
• C. Limit fluid intake to prevent edema
• D. Increase intake of high-calcium foods

Correct answer: B

Rationale: The correct instruction that the nurse should include in the teaching plan for a client prescribed methotrexate is to report any signs of infection immediately. Methotrexate can suppress the immune system, making the individual more susceptible to infections. Reporting signs of infection promptly allows for timely intervention. Choices A, C, and D are incorrect. Avoiding folic acid supplements is not recommended because methotrexate can lead to folate deficiency, so supplementation may be necessary. There is no direct correlation between fluid intake limitation and methotrexate use. Increasing high-calcium foods is not specifically related to methotrexate therapy for rheumatoid arthritis.

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