Correct Answer: C

Rationale: When palpating the abdomen of an infant with hypertrophic pyloric stenosis (HPS), the nurse would expect to feel an olive-sized mass in the right upper quadrant. This finding is characteristic of HPS due to the hypertrophied pylorus muscle. Choices A, B, and D are incorrect. A distended colon is not typically associated with HPS. Marked tenderness around the umbilicus is not a specific finding of HPS. Rhythmic peristaltic waves in the lower abdomen are not expected in HPS, as the condition primarily affects the pylorus region of the stomach.

Correct Answer: A

Rationale: Administering a bronchodilator is the priority intervention for a child experiencing an acute asthma exacerbation. Bronchodilators help to dilate the airways quickly, providing immediate relief by opening up the narrowed air passages in asthma. Antihistamines are not the first-line treatment for asthma exacerbations and may not address the underlying bronchoconstriction. Corticosteroids are important for long-term control of asthma but may take longer to have an effect compared to bronchodilators. Administering oxygen is essential for hypoxemia in asthma exacerbations, but the priority is to relieve bronchoconstriction promptly with a bronchodilator.

Correct Answer: C

Rationale: In a child with suspected Addison disease, the presence of hyperpigmentation (bronzing of the skin) and hypotension are key clinical findings. Hyperpigmentation is due to increased ACTH stimulation, resulting in melanocyte stimulation. Hypotension occurs due to decreased aldosterone production and subsequent sodium loss. Choices A, B, and D are incorrect. Arrested height and increased weight are not typical of Addison disease; thin, fragile skin and multiple bruises are more indicative of conditions like Cushing's syndrome; blurred vision and enuresis are not typically associated with Addison disease.

Correct Answer: B

Rationale: In today's diverse society, the concept of family has evolved beyond traditional definitions. Choice B, 'A family is whatever the child and family say it is,' reflects the contemporary understanding that families can take various forms, based on self-identification and individual perspectives. Choice A is too restrictive, as modern families may not solely consist of parents and their offspring living together. Choice C is somewhat inclusive but lacks the recognition of self-identification and diversity within families. Choice D focuses on genetic relation and roles, which may not apply to all modern family structures. Therefore, choice B is the most suitable and inclusive definition of a modern family in today's society.

Correct Answer: D

Rationale: Pegs and pounding boards are the most suitable choice for toddlers to express their emotions constructively. These materials provide a safe and acceptable way for toddlers to release anger and frustration through physical activity. Options A, B, and C may not be as effective or safe for toddlers dealing with temper tantrums. A ball and bat may encourage aggressive behavior rather than constructive expression. A wad of clay might not be ideal for channeling anger, and a punching bag can potentially promote violent behavior, which is not appropriate for toddlers.