A 3-year-old female has had severe diarrhea and vomiting for 4 days. She is now unresponsive with rapid, shallow respirations and thready radial pulses. Her heart rate is 160 beats/min, and her oxygen saturation is 88%. You should:

Correct Answer: A

Rationale: In a pediatric patient presenting with unresponsiveness, rapid, shallow respirations, thready pulses, high heart rate, and low oxygen saturation, the priority is to ensure adequate oxygenation. Ventilating the child with a bag-valve mask is crucial in this scenario to support her breathing and improve oxygenation, as indicated by her low oxygen saturation and respiratory distress. Starting chest compressions is not indicated as the child has a pulse. Administering high-flow oxygen via a non-rebreathing mask may not be as effective as providing positive pressure ventilation with a bag-valve mask in this situation. Placing her in the recovery position is not appropriate when the child is unresponsive and in respiratory distress.

Correct Answer: A

Rationale: When ventilating an apneic child, the most important action is to avoid hyperventilation and ensure adequate chest rise. Hyperventilation can lead to decreased cardiac output and increased intracranial pressure. Adequate chest rise confirms effective ventilation and minimizes the risk of complications. Choice B is incorrect because using both hands to squeeze the bag may not ensure proper ventilation and can lead to complications. Choice C is incorrect as inserting an oropharyngeal airway is not the initial action in ventilating an apneic child with a bag-valve mask. Choice D is incorrect as providing ventilations every 3 to 5 seconds may not be appropriate for effective ventilation in a pediatric patient.

Correct Answer: A

Rationale: In a child with respiratory failure, slow, irregular breathing is a common sign. Respiratory failure impairs the ability to exchange oxygen and carbon dioxide efficiently, leading to altered breathing patterns. Flushed skin, a strong cry, or unconsciousness may not be specific signs of respiratory failure and could be indicative of other conditions. Flushed skin may be a sign of fever or increased blood flow, a strong cry may indicate pain or distress, and unconsciousness can have various causes beyond respiratory failure.

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.

Correct Answer: B

Rationale: In obstetrics, gravida indicates the number of pregnancies, including the current one. Para indicates the number of pregnancies carried to viability (20 weeks or more). Since the patient has been pregnant twice but only carried one pregnancy past 20 weeks, her obstetric history should be documented as gravida 2, para 0. The miscarriage at 19 weeks does not contribute to the para count. Choice A (gravida 2, para 1) would indicate that she has had two pregnancies with one resulting in a live birth, which is incorrect. Choice C (gravida 1, para 1) would indicate that she has had one pregnancy with one live birth, which does not reflect her obstetric history. Choice D (gravida 0, para 2) would indicate that she has never been pregnant past 20 weeks, which is also inaccurate.