Nokea
What is the main function of the uterus?
- A. Dilate and expel the baby from the cervix.
- B. House the fetus as it grows for 40 weeks.
- C. Provide a cushion and protect the fetus from infection.
- D. Provide oxygen and other nutrients to the fetus.
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.
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How should you assist with the delivery of the baby's head?
- A. Grasping each side of the baby's head and gently pulling to facilitate delivery.
- B. Placing your fingers on the bony part of the skull and applying gentle pressure.
- C. Carefully rotating the baby's head to face up during delivery.
- D. Placing the palm of your hand firmly against the back of the baby's skull.
Correct Answer: B
Rationale: To assist with the delivery of the baby's head, the correct technique involves placing your fingers on the bony part of the skull and applying gentle pressure. This method helps guide the baby's head through the birth canal safely and effectively. Choices A, C, and D are incorrect. Grasping and pulling the baby's head, rotating the head, or placing the palm of your hand against the back of the baby's skull can potentially cause harm or complications during delivery.
You are dispatched to a residence for a child with respiratory distress. The child is wheezing and has nasal flaring and retractions. His oxygen saturation is 92%. You should:
- A. place the child in a supine position.
- B. administer high-flow oxygen.
- C. begin chest compressions.
- D. administer low-flow oxygen.
Correct Answer: B
Rationale: In a scenario where a child presents with respiratory distress, wheezing, nasal flaring, retractions, and an oxygen saturation of 92%, the appropriate intervention is to administer high-flow oxygen. This helps to improve oxygenation and alleviate the respiratory distress the child is experiencing. Placing the child in a supine position can worsen their condition by affecting their ability to breathe effectively. Chest compressions are not indicated in this case as the child is not in cardiac arrest. Administering low-flow oxygen may not provide adequate oxygenation for a child in respiratory distress with a saturation of 92%. Therefore, the priority is to administer high-flow oxygen to improve oxygen levels and support the child's breathing.
When responding to a call for a 2-year-old child who fell from a second-story window, with the mechanism of injury and the age of the patient in mind, you should suspect that the primary injury occurred to the child's:
- A. chest.
- B. head.
- C. lower extremities.
- D. abdomen.
Correct Answer: B
Rationale: In a scenario where a young child falls from a significant height like a second-story window, the primary injury is more likely to be to the head. This is because young children have proportionately larger head sizes compared to their body, making them more susceptible to head injuries in such falls. The chest (Choice A), lower extremities (Choice C), and abdomen (Choice D) are less likely to sustain the primary injury in this scenario, as the impact of the fall and the child's anatomy predispose the head to be the most affected area.
What action should you take if a newborn's heart rate is 50 beats/min?
- A. Begin chest compressions.
- B. Reassess in 30 seconds.
- C. Administer blow-by oxygen.
- D. Start positive-pressure ventilations.
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.
Your assessment of a newborn reveals cyanosis to the chest and face and a heart rate of 90 beats/min. What should you do first?
- A. Dry the infant briskly.
- B. Suction the mouth.
- C. Begin artificial ventilations.
- D. Begin chest compressions.
Correct Answer: C
Rationale: In a newborn with cyanosis to the chest and face and a heart rate of 90 beats/min, the priority action is to begin artificial ventilations. A heart rate below 100 beats/min with cyanosis indicates a need for immediate respiratory support to improve oxygenation. Drying the infant briskly or suctioning the mouth may be necessary later but are not the initial priority. Chest compressions are not indicated as the heart rate is above 60 beats/min.