Correct Answer: A

Rationale: The correct answer is A: Allergy. Allergy is not an infectious cause of diarrhea. Diarrhea caused by bacteria, parasites, and viruses is due to infection, while an allergy triggers an immune response that can lead to diarrhea but is not caused by an infectious agent. Choices B, C, and D are incorrect because bacteria, parasites, and viruses are known infectious causes of diarrhea, resulting from infections by these microorganisms.

Correct Answer: A

Rationale: The correct answer is Arm recoil. Arm recoil is slower in healthy but fatigued newborns after birth, making it best elicited after the first hour of birth when the baby has had time to recover from the stress of birth. This assessment helps evaluate neuromuscular maturity in newborns and is more accurate when performed after the initial recovery period. The other choices, Square window sign, Scarf sign, and Popliteal angle, are not specifically assessed using the Ballard gestational assessment tool and do not relate to the recovery period after birth.

Correct Answer: B

Rationale: A heart rate of 80 bpm is least likely to be observed in a normal newborn. The normal heart rate range for a newborn is usually higher than 80 bpm, typically ranging from 120-160 bpm. The Moro reflex (choice A) is a normal newborn reflex, respirations being irregular (choice C) are expected due to the immature respiratory control center, and an uneven head shape (choice D) is common due to molding during vaginal delivery.

Correct Answer: C

Rationale: Encouraging the adolescent to remain in the room throughout the hospitalization may lead to social isolation, hinder the adolescent's emotional well-being, and impede their recovery. It is essential for adolescents to have social interaction, engage in meaningful conversations, and receive support from peers to cope with the stress of hospitalization. Choices A, B, and D are appropriate interventions as they promote involvement in care, emotional expression, and social support, which are beneficial for the adolescent's overall well-being during hospitalization.

Correct Answer: A

Rationale: The correct instruction for the client postpartum is to use ice packs to reduce swelling for the first 24 hours. This helps alleviate discomfort and promote healing. Applying heat packs immediately after birth is not recommended as they can increase swelling. A peri-bottle is advised for cleansing the perineum, not to be avoided. Tampons should not be used to absorb lochia discharge as they can increase the risk of infection. Therefore, the use of ice packs is the most appropriate and beneficial instruction for perineal care postpartum.