Which of the following make small-volume ultrasonic drug delivery systems different from their large-volume counterparts?
1. They do not use a couplant compartment.
2. Drugs are placed directly on the transducer.
3. Battery power is available on some units.
4. Patient flow, not a blower, carries the aerosol.
a. 2 and 4 only
b. 3 and 4 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
ANS: D
Unlike the larger units, some of these systems do not use a couplant compartment; the medication is placed directly into the manifold on top of the transducer. The transducer is connected by ca-ble to a power source, often battery-powered to increase portability. These devices have no blower; the patient's inspiratory flow draws the aerosol from the nebulizer into the lung.
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You are passively stretching the hip flexors of a patient in the position of prone hip extension and knee flexion
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