Neonates Chapter 15

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Neonates Chapter 15
2012-03-06 17:46:13
ventilator system

Management of the patient ventilator system
Show Answers:

  1. CPAP increases FRC by:
    Physically holding the alveoli open during exhalation
  2. Of the following, which is the most common device used to apply CPAP to the neonate?
    Nasal prongs
  3. Which of teh following would indicate a failure of CPAP?
    1. PaO2 less than 50 mm Hg with an FiO2 of 0.80 to 1.0 and CPAP of 10 to 12 cm H2O
    2. PaCO2 greater than 55 mm Hg
    3. Marked retractions
    4. Frequent apnea spells
    5. Reduced FiO2 needs
    • PaO2 less than 50mm HG with an FiO2 of 0.80 to 1.0 and CPAP of 10 to 12 cm H20
    • Marked retractions
    • Frequent apnea spells
  4. Determination of adequate levels of PIP is initially determined by:
    Chest excursion, breath sounds, and PaO2.
  5. Changing which of the following ventilator parameters would not alter minute ventilation?
  6. Which of the following parameters has the greatest influence on mean airway pressure?
  7. The respiratory care practitioner receives blood gas results on a ventilated infant. The PaCO2 is 48 mm Hg and previously it was 43 mm Hg. A proper ventilator change would be:
    Increase the rate by 5 BPM or teh PIP by 2 cm H2O?
  8. The main advantage in using volume-cycled ventilation with neonates is:
    Delivery of a consistent tidal volume
  9. A 6-year-old female patient weighing 40 pounds is being ventilated at a tidal volume of 280 ml and a rate of 20 breaths/min. The PIP is 38 cm H2O with a PEEP of 4 cm H2O. The compliance of the circuit tubing is measured at 2.5 ml/cm H2O. Which of the following accurately describes this patient's corrected tidal volume?
    10.8 ml/kg
  10. Which mode of ventilation should not be used on a spontaneously breathing patient?
    Inverse ratio ventilation
  11. What is not considered a hazard of mechanical ventilation?
    Diaphragmatic paralysis
  12. The first parameter weaned from a mechanically ventilated infant should be:
  13. Whichof the following are clinical signs of a failure to wean?
    1. Increased chest excursion
    2. Bradycardia
    3. Retractions
    4. Tachycardia
    5. Pallor
    • Bradycardia
    • Retractions
    • Tachycardia
    • Pallor
  14. Which of the following are predictive of a low risk of the need for reintubation in the pediatric patient?
    1. Spntaneous tidal volume of 3.2 ml/kg
    2. FiO2 of 0.45
    3. Mean airway pressure of 4.0 cm H2O
    4. PIP of 20 cm H2O
    5. Vt/Ti of 16 ml/kg/sec
    • 3. Mean airway pressure of 4.0 cm H2O
    • 4. PIP of 20 cm H2O
    • 5. Vt/Ti of 16 ml/kg/sec
  15. What arterial blood gas change is most likely to be observed when the mean airway pressure is increased?
    Increased PaO2
  16. What mode of ventilation should be instituted if the physician requests an increase in the spontaneous tidal volume during SIMV?
  17. The respiratory therapist observes a PaO2 of 52 mm Hg on an infant despite nasal CPAP of 8 cm H2O and 60% oxygen. What is the therapist's most appropriate action?
    Intubation and ventilation in the IMV/CPAP mode
  18. What is the most accurate classification of neonatal mechanical ventilation?
    Pressure controlled, pressure limited, time cycled
  19. How is hypercapnic respiratory failure identified?
    An increased PaCO2
  20. How is tidal volume increased during pressure-controlled ventilation?
    increase the change in pressure