Physically holding the alveoli open during exhalation
Of the following, which is the most common device used to apply CPAP to the neonate?
Nasal prongs
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
Determination of adequate levels of PIP is initially determined by:
Chest excursion, breath sounds, and PaO2.
Changing which of the following ventilator parameters would not alter minute ventilation?
PEEP
Which of the following parameters has the greatest influence on mean airway pressure?
PEEP
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?
The main advantage in using volume-cycled ventilation with neonates is:
Delivery of a consistent tidal volume
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
Which mode of ventilation should not be used on a spontaneously breathing patient?
Inverse ratio ventilation
What is not considered a hazard of mechanical ventilation?
Diaphragmatic paralysis
The first parameter weaned from a mechanically ventilated infant should be:
FiO2
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
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
What arterial blood gas change is most likely to be observed when the mean airway pressure is increased?
Increased PaO2
What mode of ventilation should be instituted if the physician requests an increase in the spontaneous tidal volume during SIMV?
PSV
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
What is the most accurate classification of neonatal mechanical ventilation?
Pressure controlled, pressure limited, time cycled
How is hypercapnic respiratory failure identified?
An increased PaCO2
How is tidal volume increased during pressure-controlled ventilation?