Answer to Question 1
A
For use of EID for infusion, turn on the power button, select the required drops per minute or volume per hour, close the door to the control chamber, and press the start button. In this case, 500 mL/4 hr = 125 mL/hr.
Answer to Question 2
D
The waterless two-chamber system is ready for connecting to the patient's chest tube after the wrappers have been opened. The waterless system's principles are similar to those of the water-seal system, except that fluid is not required for setup. Because water is not used, accidentally tipping over the system does not compromise the patient's condition. The suction chamber does not depend on water. Instead, it contains a float ball, which is set by a suction control dial after the suction source is turned on.