Correct Answer: C

Rationale: In Hispanic culture, the balance between hot and cold is important, and the parent may be giving the child broth to restore this balance while avoiding "cold" foods.

Correct Answer: A

Rationale: Adolescents typically identify and relate more closely to their peer group, especially during the teenage years when peer relationships become a central focus.

Correct Answer: A

Rationale: The best response by the nurse is A, as the anterior fontanel typically closes between 12-18 months of age, allowing for brain growth during infancy. Choice B is incorrect because it does not provide a specific timeframe for the closure of the fontanel. Choice C is incorrect as it suggests a later closure timeframe than usual. Choice D is incorrect as it states that the soft spots should have closed already, which is inaccurate for a 6-month-old infant.

Correct Answer: C

Rationale: The sweat chloride test is the primary diagnostic test for cystic fibrosis. Cystic fibrosis is characterized by abnormal transport of chloride and sodium across epithelial cell membranes, leading to increased chloride in sweat. This test is crucial for diagnosing cystic fibrosis in suspected cases. Liver enzymes (Choice A), serum calcium (Choice B), and urine creatinine (Choice D) are not specific tests for cystic fibrosis and would not provide the necessary information for diagnosis in this case.

Correct Answer: A

Rationale: The correct answer is A: Sitting independently. By 11 months, most infants can sit independently. This milestone usually precedes walking, which typically occurs closer to 12 months. Turning a doorknob and building a tower of four cubes involve more complex motor skills that are typically achieved later in development. Therefore, at 11 months, sitting independently is the milestone that the nurse would expect an infant to have achieved.