Gestational age can be assessed using the Ballard score:

Gestational age can be assessed using the Ballard score
 A) from 22 to 44 weeks
  B) within 5 weeks of conception
  C) from 32 to 44 weeks
  D) from 36 to 40 weeks

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Q. 2  The primary difference between the Percussionaire IPV-2 and IPV-1C is:
 A) demand CPAP
  B) system pressure regulation
  C) impact control regulation
  D) automated rate control

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Q. 3  Work of breathing reflects the amount of energy required by the lungs to overcome
 A) expiratory flows
  B) pressure
  C) volume
  D) resistance

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Q. 4  The exhalation port on the Phasitron is opened and closed by:
 A) an inflatable mushroom valve
  B) a sliding venturi
  C) a spring
  D) a diaphragm