Correct Answer: D

Rationale: After an appendectomy, applying a pillow against the abdomen to splint the incision site when coughing helps reduce pain by providing support and minimizing movement that could cause discomfort.

Correct Answer: C

Rationale: The correct answer is C: 'Dry, hacking cough.' A dry, hacking cough is a classic manifestation of pertussis. Pertussis typically presents with symptoms of an upper respiratory tract infection, starting with a persistent, severe, and uncontrollable cough that can worsen at night. This cough is often followed by a high-pitched 'whoop' sound as the patient tries to catch their breath, hence the term 'whooping cough.' In contrast, options A, B, and D are not typically associated with pertussis. Inflamed throat with exudate may suggest a bacterial throat infection like streptococcal pharyngitis, purulent eye drainage is more indicative of a bacterial conjunctivitis, and Koplik spots on the buccal mucosa are specific to measles. Therefore, recognizing the dry, hacking cough as a manifestation of pertussis is crucial for early identification and appropriate management of the disease.

Correct Answer: D

Rationale: After an appendectomy, applying a pillow against the abdomen to splint the incision site when coughing helps reduce pain by providing support and minimizing movement that could cause discomfort.

Correct Answer: B

Rationale: The correct answer is B: New onset disorientation to time and place. Cimetidine can cause adverse effects on the CNS system, especially in elderly patients with renal or hepatic impairment. This may manifest as confusion, hallucinations, lethargy, restlessness, or seizures. Pain with urination (choice A) is not typically associated with cimetidine use, and HR changes (choice C) are more likely related to other factors. Choice D is not a valid option.

Correct Answer: D

Rationale: During the preschool age, play activities should promote social, mental, and physical development. Playing dress-up encourages imagination, creativity, and social interaction, making it an ideal play activity for preschoolers.