Correct Answer: B

Rationale: Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities, leading to higher blood pressure in the arms.

Correct Answer: C

Rationale: Allowing the child to play with a stethoscope can help distract them, making it easier to auscultate breath sounds. This approach can create a more cooperative and engaging environment for the child, facilitating a more accurate assessment of their breath sounds.

Correct Answer: B

Rationale: The nurse's priority action should be to inspect the child's ears for drainage. This immediate assessment can provide valuable information about the presence of infection or fluid accumulation, which can directly impact the child's hearing. By identifying any signs of drainage, the nurse can promptly address any current issues affecting the child's ear health and hearing abilities.

Correct Answer: D

Rationale: The most important information for the nurse to obtain in this scenario is how often the MDI is used daily. This is crucial to assess if the symptoms the student is experiencing, such as insomnia, shakiness, and tachycardia, could be related to overuse of the inhaler. Overuse of albuterol can lead to side effects like tremors, palpitations, and difficulty sleeping, so understanding the frequency of MDI use is key in determining a potential cause for the student's symptoms.

Correct Answer: C

Rationale: The nurse's priority is to first reassure the mother that she is using albuterol correctly to open her son's airways during episodes of difficulty breathing. This reassurance helps build trust and ensures that the child receives the intended benefit of the medication. Once the mother feels confident in her administration technique, the nurse can then provide further education or address any concerns about the child's asthma management.