One type of threshold resistor used to create continuous positive airway pressure is which of the following?
a. Bennett valve c. Underwater seal
b. Sliding Venturi d. Oscillator cartridge
ANS: C
The underwater seal resistor has tubing attached to the expiratory port of the circuit and is sub-merged under a column of water. The level of continuous positive airway pressure is determined by the height of the column.
Health Professions
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Volume I of the ICD-9-CM ends with:
a. ill-defined diagnoses. b. diseases of the circulatory system. c. injury and poisoning. d. diseases of the digestive system.
Health Professions
Air trapping is a major concern in patients with what diagnosis when using the assist-control mode?
a. Pneumonia b. Chronic obstructive pulmonary disease (COPD) c. Chest trauma d. Neuromuscular disease
Health Professions