Which of the following is an abnormal finding when assessing the abdomen of a newborn?

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: C

Rationale: During resuscitation of an apneic infant, the appropriate ventilation rate is 12 to 20 breaths per minute. This rate helps provide adequate oxygenation and ventilation without causing harm to the infant. Choice A (8 to 10 breaths/min) is too low and may not provide sufficient ventilation. Choice B (10 to 12 breaths/min) is slightly below the recommended range, which may not be optimal for effective resuscitation. Choice D (20 to 30 breaths/min) is too high and may lead to overventilation and potential harm to the infant by causing hypocapnia.

Correct Answer: B

Rationale: The most crucial initial steps in assessing and managing a newborn involve clearing the airway to ensure proper breathing and keeping the infant warm to maintain body temperature. Airway clearance helps prevent respiratory distress, while warmth is essential to prevent hypothermia, a common issue in newborns. These steps are vital in the immediate care of a newborn to support their transition to extrauterine life and ensure their well-being. Choice A is incorrect because obtaining an APGAR score is important but not as critical as clearing the airway. Choice C is incorrect as suctioning the airway is not always necessary and obtaining a heart rate is secondary to ensuring a clear airway and warmth. Choice D is incorrect because counting respirations is not as immediate and crucial as clearing the airway.

Correct Answer: D

Rationale: If a newborn's heart rate is below 60 beats per minute, the appropriate action is to start positive-pressure ventilations. Ventilations help deliver oxygen to the newborn's body and support respiratory function, which is critical in cases of bradycardia. Chest compressions are not recommended until the heart rate is below 60 despite adequate ventilation. Reassessment is essential but not the immediate action required in this scenario. Administering blow-by oxygen alone may not effectively address the underlying cause of bradycardia, making positive-pressure ventilations the priority intervention in this case.

Correct Answer: D

Rationale: Upon delivery of a newborn's head, the priority is to clear the airway to ensure proper breathing. Suctioning the mouth takes precedence over suctioning the nose or other actions to prevent potential airway obstruction. Choice D is the correct answer as it addresses the immediate need to maintain a clear airway for the newborn. Choices A, B, and C are not the correct actions to take at this moment as they do not directly address the crucial need to establish a clear airway for the newborn.

Correct Answer: A

Rationale: In a 5-year-old boy with major trauma, a blood pressure of 70/40 mm Hg and a pulse rate of 140 beats/min, and weak, indicate decompensated shock. This presentation signifies inadequate perfusion, leading to compensatory mechanisms being overwhelmed, resulting in decompensated shock. Choice B is incorrect as the vital signs suggest the body is unable to adequately compensate for the trauma. Choice C is incorrect as the vital signs are more indicative of shock rather than increased intracranial pressure. Choice D is incorrect as such low blood pressure is not appropriate for a child of this age and indicates a critical condition.

Correct Answer: C

Rationale: Braxton-Hicks contractions are irregular and usually do not increase in intensity. Unlike true labor contractions, they tend to alleviate with a change in position, making option C the correct choice. Choices A, B, and D are incorrect because Braxton-Hicks contractions do not follow rupture of the amniotic sac, are not intensified by activity or accompanied by a pink discharge, and do not consistently become stronger or are not alleviated by changing position.

Correct Answer: C

Rationale: The correct statement regarding SIDS is that death usually occurs during sleep. Sudden Infant Death Syndrome (SIDS) is the unexpected death of a seemingly healthy infant, typically occurring during sleep. The exact cause of SIDS is not fully understood. While placing the baby on its back to sleep is a recommended preventive measure to reduce the risk of SIDS, it cannot guarantee prevention. Choice A is incorrect as SIDS is not limited to premature infants. Choice B is incorrect as SIDS is not primarily caused by child abuse.

Correct Answer: B

Rationale: The main function of the uterus is to house and nurture the growing fetus for approximately 40 weeks during pregnancy. It provides the necessary environment for the fetus to develop and grow until it is ready for birth. Choice A is incorrect as the cervix, not the uterus, dilates during labor to allow the baby to pass through. Choice C is incorrect as while the uterus does provide a protective environment, its primary function is not to act as a cushion. Choice D is incorrect as the placenta, not the uterus, is responsible for providing oxygen and nutrients to the fetus.