Correct Answer: C

Rationale: After delivering a shock, it is crucial to immediately resume CPR. CPR helps circulate oxygenated blood to vital organs until the AED prompts you to stop for further rhythm analysis. This continuous cycle of CPR and defibrillation maximizes the chances of restoring a normal cardiac rhythm and improving the child's chances of survival. Assessing for a carotid pulse is not necessary after a shock as pulse checks are often unreliable during resuscitation. Opening the airway and ventilating is not the immediate step after delivering a shock as CPR takes precedence. Reanalyzing the cardiac rhythm should be done only when prompted by the AED after a set period of CPR.

Correct Answer: B

Rationale: The correct answer is B. The presence of green vomit in a newborn is an abnormal finding and indicates a possible intestinal obstruction. This finding requires immediate attention and further investigation. Choices A, C, and D are normal findings in a newborn's abdomen assessment. A newborn typically has an umbilical cord with two arteries and one vein, a liver that may be palpable 1 to 2 cm below the costal margin due to its normal size in a neonate, and a soft, nondistended abdomen as expected in healthy newborns.

Correct Answer: B

Rationale: The correct compression to ventilation ratio for a single rescuer performing CPR on a child is 30:2. This ratio ensures adequate circulation and oxygenation during CPR. 30 compressions help maintain blood flow, while 2 rescue breaths provide oxygenation. Choice A (3:01) is incorrect as it does not follow the standard CPR guidelines for children. Choice C (15:2) is incorrect as it is the ratio used for adult CPR. Choice D (5:1) is incorrect as it is not the recommended ratio for child CPR.

Correct Answer: D

Rationale: In cases of sexual assault, the priority is to address any life-threatening injuries first before proceeding with other aspects of care. Although preserving evidence and approaching the situation with sensitivity are crucial, immediate treatment of life-threatening conditions takes precedence to ensure the patient's well-being and safety. Having a female healthcare provider, advising against showering or changing clothes, and acknowledging the patient as a potential crime scene are important but secondary considerations compared to addressing any life-threatening injuries promptly.

Correct Answer: D

Rationale: Bruising to the upper back is more suspicious for child abuse compared to the other listed injuries. In young children, injuries like bruises to the upper back are less likely to be accidental and may raise concerns about physical abuse. The upper back is an area less prone to accidental injuries during play or falls. Multiple bruises to the shins are common in active children. A burned hand with splash marks may suggest accidental burns. A small laceration to the chin is also a common injury from falls in children. Therefore, the bruising on the upper back is more concerning for possible child abuse.