What type of oxygen-delivery device does the following image illustrate?
a. Simple mask c. Air-entrainment mask
b. Nonrebreathing mask d. Aerosol mask
ANS: B
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Molecular structures in which the first and last carbon atoms in a continuous chain are joined to each other in a cyclic arrangement are known as
a. Cycloalkenes b. Cycloalkanes c. Alkynes d. Aromatic Hydrocarbon
The total flow for a 50% air-entrainment mask running at 8 L/min is _____ L/min
a. 18 c. 25 b. 22 d. 30
Which of the following indicates the size of the default text font used in the drawing program?
A. 8-point B. 10-point C. 12-point D. None of these
You are dispatched to a residence at 2:00 AM for an elderly man with shortness of breath. The patient tells you that he was suddenly awakened with the feeling that he was smothering. You note dried blood on his lips. The patient tells you that he has some type of "breathing problem," for which he uses a prescribed inhaler and takes a "heart pill." You should suspect:
A) right ventricular failure. B) reactive airway disease. C) acute COPD exacerbation. D) left-sided heart failure.