EXERCISES, LESSON 1
INSTRUCTIONS: Answer the following questions by marking the lettered response that
best answers the question or best completes the incomplete sentence.
After you have answered all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the lesson material referenced after the solution.
The low pressure alarm is one of the safety features of the Babybird pediatric
ventilator. What activates the alarm?
a. An internal operating pressure lower than 53psi.
b. An internal operating pressure lower than 43psi.
Failure of the expiratory venturi during the inspiratory phase of controlled
d. A source-gas flow of less than 6 1/2 lpm.
The oxygen blender precisely controls concentrations of air and oxygen supplied
to the patient. What happens when the supply of one of the gases is cut off?
a. The diaphragm operated poppet valves both close.
b. An alarm sounds and the supply of both gases is halted.
The needle on the flowmeter falls below the green wedge.
d. The blender continues to supply the remaining gas to the patient.
Which of the following statements concerning the auxiliary-flow power line is
a. In the controlled intermittent mandatory ventilation phase, the auxiliary flow
power line is restricted.
b. Never use the auxiliary flow power line to power the nebulizer jets.
The auxiliary flow power line supplies gas to the nebulizer jets.
d. The auxiliary flow line delivers source gas to the mode selector.