Nursing Elites

1. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:

• A. nondisjunction.
• B. X-linked recessive inheritance.
• C. genomic imprinting.
• D. autosomal dominant inheritance.

Correct answer: A

Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.

2. What is the priority nursing intervention for a child admitted to the hospital with a diagnosis of acute glomerulonephritis?

• A. Monitoring for hypertension
• B. Providing pain relief
• C. Restricting fluid intake
• D. Encouraging fluid intake

Correct answer: A

Rationale: The priority nursing intervention for a child with acute glomerulonephritis is monitoring for hypertension. Acute glomerulonephritis involves inflammation of the kidney's glomeruli, leading to impaired kidney function. Hypertension is a common complication due to fluid retention and increased renin-angiotensin system activity. Monitoring for hypertension is crucial for early detection and management to prevent further kidney damage and complications. Providing pain relief (Choice B) may be required for discomfort but is not the priority. Restricting fluid intake (Choice C) may be necessary in some kidney diseases, but in acute glomerulonephritis, the focus is on monitoring and managing hypertension. Encouraging fluid intake (Choice D) is inappropriate as it can exacerbate fluid overload and hypertension in acute glomerulonephritis.

3. While teaching a parent how to prevent accidents while caring for a 6-month-old infant, what motor development ability should be emphasized?

• A. Sits up
• B. Rolls over
• C. Crawls short distances
• D. Stands while holding on to furniture

Correct answer: B

Rationale: The correct answer is B: Rolls over. At 6 months, most infants can roll over, increasing the risk of falls. It is important to emphasize to the parent the need for careful supervision to prevent accidents. While choices A, C, and D are also milestones in infant motor development, rolling over at this age poses a higher risk of accidents due to the increased mobility and potential for falls.

4. A nurse is assessing a child with suspected pertussis. What clinical manifestation is the nurse likely to observe?

• A. Dry, hacking cough
• B. Inspiratory stridor
• C. Nasal congestion
• D. Severe coughing spells

Correct answer: D

Rationale: The correct answer is D: Severe coughing spells. Pertussis, also known as whooping cough, typically presents with severe coughing spells that can be followed by a characteristic 'whoop' sound. These coughing fits can be intense and prolonged, often causing the child to gasp for air between coughs. Option A, dry hacking cough, is a common symptom of other respiratory conditions like bronchitis. Option B, inspiratory stridor, is more commonly associated with conditions like croup. Option C, nasal congestion, is not a typical symptom of pertussis.

5. A young child has coarctation of the aorta. What does the nurse expect to identify when taking the child’s vital signs?

• A. A weak radial pulse
• B. An irregular heartbeat
• C. A bounding femoral pulse
• D. An elevated radial blood pressure

Correct answer: A

Rationale: In coarctation of the aorta, there is narrowing of the aorta leading to decreased blood flow distal to the constriction. This results in a weak or delayed femoral pulse and a relatively weaker radial pulse compared to the femoral pulse. An irregular heartbeat (choice B) is not a typical finding in coarctation of the aorta. A bounding femoral pulse (choice C) would not be expected due to the decreased blood flow beyond the constriction. An elevated radial blood pressure (choice D) is not a common characteristic of coarctation of the aorta; instead, blood pressure may be higher in the upper extremities compared to the lower extremities due to the constriction.

Similar Questions