Correct Answer: C

Rationale: The nurse should identify the 4-year-old with a fever and upper respiratory tract infection as not eligible to receive routine immunizations. It is contraindicated to administer vaccines in the presence of moderate to severe illness, whether with or without fever, to prevent potential complications or reduced vaccine efficacy.

Correct Answer: D

Rationale: Maintaining a consistent bedtime routine is essential for children with ADHD as it helps in managing their symptoms effectively. Consistency in bedtime routines aids in regulating the child's sleep patterns, promoting better rest, and ultimately improving their behavior and focus during the day.

Correct Answer: D

Rationale: “SR” indicates that the drug is sustained release; therefore, the patient must swallow the pill intact, without chewing or crushing, which would result in a bolus effect. Grapefruit juice should be avoided, because it can inhibit intestinal and hepatic metabolism of the drug, thereby raising the drug level. Constipation, not loose stools, is a common side effect. Increasing fluids and dietary fiber can help prevent this adverse effect.

Correct Answer: A

Rationale: The symptoms of nausea, vomiting, and confusion are concerning as they are indicative of Reye's syndrome, a rare but serious condition associated with aspirin use in children during viral illnesses. Reye's syndrome can lead to severe complications, including brain and liver damage, hence prompt recognition and management are crucial.

Correct Answer: B

Rationale: Administering the vaccine intramuscularly to a child with hemophilia is preferred to reduce the risk of bleeding. Hemophiliac individuals have a decreased ability to form blood clots, and administering vaccines intramuscularly reduces the risk of bleeding compared to subcutaneous administration. Using an appropriate needle length and applying pressure to the site post-injection are important steps, but choosing the intramuscular route is crucial in this case to minimize bleeding complications.