Stage 1 hypertension in children is defined as:

Correct Answer: D

Rationale: Stage 1 hypertension in children is defined as blood pressure levels between the 95th and 99th percentile for age, height, and sex.

Correct Answer: C

Rationale: The Look-Listen-Feel method is used to assess if a patient is breathing by observing chest movement, listening for breath sounds, and feeling for airflow.

Correct Answer: D

Rationale: Ethambutol inhibits arabinosyl transferase and can cause dose-dependent optic neuritis with red-green color blindness.

Correct Answer: A

Rationale: Skin tests are the most effective and commonly used method to detect specific allergens, offering high sensitivity and immediate results compared to blood tests.

Correct Answer: A

Rationale: Frequent beta-agonist use can cause tremors, irritability, tachycardia, and hypokalemia, but bradycardia is not a common side effect.