Nursing Elites

1. An infant with a congenital heart defect is being given gavage feedings. The parents ask the nurse why this is necessary. How should the nurse respond?

• A. It limits the chance of vomiting.
• B. It allows the feeding to be administered rapidly.
• C. The energy that would have been expended on sucking is conserved.
• D. The quantity of nutritional liquid can be regulated better than with a bottle.

Correct answer: C

Rationale: The correct answer is C: 'The energy that would have been expended on sucking is conserved.' Gavage feedings are necessary for infants with congenital heart defects as they help conserve the infant’s energy by eliminating the need for sucking, which can be taxing for infants with cardiac issues. Choice A is incorrect because gavage feedings are not primarily used to limit vomiting. Choice B is incorrect as the speed of administration is not the main reason for gavage feedings in this case. Choice D is incorrect because the regulation of the quantity of nutritional liquid is not the primary rationale for gavage feedings in infants with congenital heart defects.

2. 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.

3. A nurse is caring for an infant with intractable vomiting. For what complication is it most important for the nurse to assess?

• A. Acidosis
• B. Alkalosis
• C. Hyperkalemia
• D. Hypernatremia

Correct answer: B

Rationale: When an infant experiences intractable vomiting, it can lead to the loss of stomach acids, resulting in metabolic alkalosis. Alkalosis is characterized by elevated blood pH and can lead to serious complications. Assessing for alkalosis is essential in this scenario to monitor and manage the infant's condition. Choices A, C, and D are incorrect because in this context, the primary concern is the metabolic imbalance caused by excessive vomiting, leading to alkalosis rather than acidosis, hyperkalemia, or hypernatremia.

4. A nurse is evaluating a 3-year-old child’s developmental progress. The inability to perform which task indicates to the nurse that there is a developmental delay?

• A. Copying a square
• B. Hopping on one foot
• C. Catching a ball reliably
• D. Using a spoon effectively

Correct answer: A

Rationale: The correct answer is A: Copying a square. At 3 years old, children should be able to copy a square as part of their fine motor skill development. The inability to perform this task may indicate a developmental delay in fine motor skills. Choice B, hopping on one foot, typically develops around 4-5 years of age, so it is not a reliable indicator of a delay at 3. Choice C, catching a ball reliably, involves coordination skills that develop later in childhood, making it less relevant for a 3-year-old assessment. Choice D, using a spoon effectively, is more related to self-care and feeding skills rather than fine motor development, so it is not the best indicator of a developmental delay in this context.

5. The nurse is developing a teaching plan for a child who is to have his cast removed. What instruction would the nurse most likely include?

• A. Applying petroleum jelly to the dry skin.
• B. Rubbing the skin vigorously to remove the dead skin.
• C. Soaking the area in warm water every day.
• D. Washing the skin with diluted peroxide and water.

Correct answer: C

Rationale: The correct instruction for the nurse to include in the teaching plan is to advise the child to soak the area in warm water every day. Soaking the area in warm water helps to gently remove dead skin without causing irritation, facilitating the safe and comfortable removal of the cast. Applying petroleum jelly (Choice A) may not be necessary and could interfere with the cast removal process. Rubbing the skin vigorously (Choice B) can lead to skin damage and should be avoided. Washing the skin with diluted peroxide and water (Choice D) is not recommended as peroxide can be irritating to the skin and may not aid in cast removal.

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