Correct Answer: C

Rationale: The biomechanical model focuses on the physical aspects of performance rather than occupation, making it the correct answer. The Canadian Model of Occupational Performance and Engagement, Person-Environment-Occupation-Participation, and Model of Human Occupation are all occupation-centered models used in occupational therapy.

Correct Answer: A

Rationale: When a child's respirations are slow and shallow due to opioid administration, it results in hypoventilation. This leads to retaining carbon dioxide, indicated by an increased PCO2 level on arterial blood gas analysis, and subsequently causes respiratory acidosis due to the buildup of CO2 in the blood.

Correct Answer: C

Rationale: In this scenario, Mary's focus on her own needs and interests by asking the mother about her lost friend and hometown indicates a lack of therapeutic benefit for the child and family. Effective therapy should prioritize the needs and goals of the child and family, not the therapist's personal desires or connections. Therefore, this interaction is not therapeutic as it fails to address the primary purpose of the therapy, which is to benefit the child and family.

Correct Answer: A

Rationale: Low-grade fever, malaise, and muscle aches are common reactions. Acetaminophen usually alleviates these problems. MMR is a live vaccine but it is attenuated or completely avirulent and does not cause measles in healthy children, only immunocompromised children.

Correct Answer: C

Rationale: Rectal temperatures are contraindicated in a toddler with a colostomy due to the risk of injury.