A nurse is conducting discharge teaching to parents about the care of their infant after cardiac surgery. The nurse instructs the parents to notify the physician of what conditions occur. (Select all that apply.).

Choice A rationale:
Bronchoscopy is not the essential test for diagnosing cystic fibrosis. Bronchoscopy is a procedure that allows the healthcare provider to visualize the airways and lungs but is not the primary test for cystic fibrosis diagnosis. Cystic fibrosis is primarily diagnosed through genetic testing and sweat chloride testing.
Choice B rationale:
Serum calcium levels are not specific to cystic fibrosis diagnosis. Serum calcium levels are typically used to assess calcium balance in the body and are not directly related to cystic fibrosis diagnosis.
Choice C rationale:
Urine creatinine levels are not specific to cystic fibrosis diagnosis. Urine creatinine levels are often used to assess kidney function and muscle breakdown but are not diagnostic for cystic fibrosis.
Choice D rationale:
Sweat chloride test is essential in establishing the diagnosis of cystic fibrosis. Cystic fibrosis is characterized by the abnormal transport of chloride across cell membranes, leading to salty sweat. The sweat chloride test measures the amount of chloride in the sweat and is a key diagnostic test for cystic fibrosis. Values above a certain threshold (typically 60 mmol/L) are suggestive of cystic fibrosis.

Choice A rationale:
Kimberly and Amanda sharing clay to each make things represents cooperative play, not parallel play. Cooperative play involves interaction and collaboration between children, whereas parallel play involves children playing side by side without interacting.
Choice B rationale:
Brian playing with his truck next to Kristina playing with her truck demonstrates parallel play. In parallel play, children play independently but alongside others, showing interest in what others are doing but without direct interaction.
Choice C rationale:
Adam playing a board game with Kyle, Steven, and Erich represents cooperative play, not parallel play. Cooperative play involves shared activities and collaboration, while parallel play involves independent activities in proximity to others.
Choice D rationale:
Danielle playing with a music box on her mother's lap is an example of solitary play, where a child plays alone without regard to others. Solitary play is common in younger children and is different from parallel play.