Correct Answer: D

Rationale: Petechial rash can be a sign of a serious condition like meningitis, and the healthcare provider should be notified immediately.

Correct Answer: C

Rationale: Providing two breaths that make the chest rise is the correct action in this situation. This helps to deliver oxygen to the infant's lungs and body, which is crucial in a situation where the infant is not breathing. Chest rise indicates successful ventilation, and it is an essential step in pediatric resuscitation, especially for infants.

Correct Answer: B

Rationale: The absence of babbling in a 7-month-old infant is a concerning auditory development milestone. Babbling is an early stage of language development which involves making various sounds. A lack of babbling could indicate a hearing impairment or other auditory issues. Therefore, the practical nurse should focus on assessing the infant's auditory function to determine if further evaluation or intervention is necessary.

Correct Answer: A

Rationale: In a child with a history of iron-deficiency anemia presenting with symptoms of fatigue, pallor, and shortness of breath, the priority action for the nurse is to administer iron supplements as prescribed. Iron supplementation is essential to treat iron-deficiency anemia and improve the child's symptoms promptly.

Correct Answer: D

Rationale: Lemonade is the correct choice for a teenager with sickle cell anemia as it provides hydration without caffeine, which is important for individuals with this condition. Caffeine can lead to dehydration, vasoconstriction, and potentially worsen symptoms in sickle cell anemia patients.