Nokea
Which of the following clinical signs would MOST suggest acute respiratory distress in a 2-month-old infant?
- A. Heart rate of 130 beats/min
- B. Respiratory rate of 30 breaths/min
- C. Abdominal breathing
- D. Grunting respirations
Correct Answer: D
Rationale: Grunting respirations are a key clinical sign of acute respiratory distress in infants. Grunting is a protective mechanism where the infant exhales against a partially closed glottis to increase functional residual capacity and oxygenation. This is often seen in conditions such as respiratory distress syndrome, pneumonia, or other causes of respiratory compromise in infants. Monitoring respiratory patterns like grunting is crucial for early recognition and intervention in infants with respiratory distress. Choices A, B, and C are less specific to acute respiratory distress in infants. While an elevated heart rate and respiratory rate can be present in respiratory distress, grunting respirations are a more direct indicator of significant respiratory compromise in infants.
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What is the appropriate ventilation rate for an apneic infant?
- A. 8 to 10 breaths/min.
- B. 10 to 12 breaths/min.
- C. 12 to 20 breaths/min.
- D. 20 to 30 breaths/min.
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.
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.
You are assessing a 26-year-old woman who is 38 weeks pregnant and is in labor. She tells you that she was pregnant once before but had a miscarriage at 19 weeks. You should document her obstetric history as:
- A. gravida 2, para 1.
- B. gravida 2, para 0.
- C. gravida 1, para 1.
- D. gravida 0, para 2.
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.
Which of the following statements regarding febrile seizures in children is correct?
- A. They can occur even after a child has had a fever for longer than 24 hours.
- B. They can be caused by viral or bacterial meningitis.
- C. They do not typically occur on the first day of a fever.
- D. They typically last less than 15 minutes and often do not have a postictal phase.
Correct Answer: D
Rationale: The correct answer is D. Febrile seizures in children typically last less than 15 minutes and often do not have a postictal phase, meaning there is usually no prolonged recovery period or confusion after the seizure. They are commonly associated with the rapid rise in body temperature at the onset of a fever, rather than the duration of the fever itself. Choices A, B, and C are incorrect because febrile seizures can occur even after a child has had a fever for longer than 24 hours, they can be caused by viral or bacterial meningitis, and they do not have a typical pattern of occurring on the first day of a fever.
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.