Nursing Elites

1. How should a nurse prepare a 15-month-old child diagnosed with hydrocephalus for a computed tomography (CT) scan?

• A. Shaving the child's head
• B. Starting the prescribed IV infusion
• C. Administering the prescribed sedative
• D. Giving the child a simple explanation of the procedure

Correct answer: D

Rationale: Preparing a toddler for a CT scan involves providing a simple explanation of the procedure to help reduce anxiety and fear. Shaving the child's head is unnecessary for a CT scan and may increase distress. Starting an IV infusion or administering sedatives may not be appropriate or necessary for all pediatric patients undergoing CT scans, especially if the child can cooperate without these interventions.

2. A health care provider orders a tap water enema for a 6-month-old infant with suspected Hirschsprung disease. What rationale causes the nurse to question the order?

• A. The result could lead to loss of necessary nutrients.
• B. It could cause a fluid and electrolyte imbalance.
• C. It could increase the fear of intrusive procedures.
• D. The result could cause shock from a sudden drop in temperature.

Correct answer: B

Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas do not directly lead to loss of necessary nutrients. Choice C is incorrect as it focuses on emotional impact rather than physiological risks. Choice D is incorrect as shock from a sudden drop in temperature is not a common consequence of a tap water enema in this scenario.

3. A 1-year-old child has a congenital cardiac malformation that causes right-to-left shunting of blood through the heart. What clinical finding should the healthcare provider expect?

• A. Proteinuria
• B. Peripheral edema
• C. Elevated hematocrit
• D. Absence of pedal pulses

Correct answer: C

Rationale: In a congenital cardiac malformation causing right-to-left shunting, the nurse should expect an elevated hematocrit. This occurs because the body compensates for decreased oxygenation by producing more red blood cells. Proteinuria (Choice A) is not typically associated with congenital cardiac malformations causing right-to-left shunting. Peripheral edema (Choice B) is more commonly seen in conditions causing left-sided heart failure. Absence of pedal pulses (Choice D) is not a typical finding in congenital cardiac malformations causing right-to-left shunting.

4. A nurse is assessing a 10-month-old infant. What developmental milestone should the nurse expect to observe?

• A. Crawling
• B. Sitting without support
• C. Standing with assistance
• D. Pulling to a stand

Correct answer: D

Rationale: The correct answer is D: Pulling to a stand. By 10 months of age, most infants should be able to pull themselves up to a standing position while holding onto furniture or other support. This milestone indicates good strength and coordination in the lower body. Choice A, Crawling, is typically achieved around 6-9 months of age. Choice B, Sitting without support, usually occurs around 6-8 months. Choice C, Standing with assistance, can typically be seen around 9-12 months, but pulling to a stand is a more advanced milestone expected by 10 months.

5. 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: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.

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