Correct Answer: A

Rationale: The nurse should suspect measles in this child. The presence of a high fever, irritability, runny nose, rash, and Koplik spots (small, red spots with blue-white centers in the mouth) are classic signs of measles. Measles is a highly contagious viral illness that can lead to serious complications if not managed promptly. Chickenpox (choice B) presents with a different rash pattern and does not typically involve Koplik spots. Fifth disease (choice C) and scarlet fever (choice D) also have distinct clinical presentations and are not characterized by the specific symptoms described in this case.

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: A

Rationale: A cough is a common clinical manifestation of pneumonia. Pneumonia often presents with symptoms such as cough, fever, chest pain, and difficulty breathing. The inflammation and infection in the lungs lead to the characteristic cough observed in patients with pneumonia. Diarrhea, rash, and vomiting are not typically associated with pneumonia and are less likely to be observed in a child with this condition.

Correct Answer: C

Rationale: Delayed physical growth is a common finding in children with symptomatic cardiac malformations. This occurs due to insufficient oxygenation and nutrient supply, which can affect overall growth and development. Mental retardation (Choice A) is not typically associated with symptomatic cardiac malformations. Inherited genetic factors (Choice B) may contribute to the development of cardiac malformations but are not a common finding in affected children. Clubbing of the fingertips (Choice D) is more commonly associated with chronic respiratory or cardiovascular conditions, rather than symptomatic cardiac malformations.

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.