In order for a fire to occur, four entities must be present at the same time: ____.
A. fuel, carbon monoxide, heat, and chemical reaction
B. fuel, oxygen, heat, and chemical reaction
C. wood, hydrogen, water, and heat
D. air, chemical reaction, physical reaction, and fuel
Answer: B
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The term BP-DOC is a memory aid used during physical exams. The O stands for:
a. observations c. open wounds b. obvious injury d. organization
The EMT shows that he understands the difference between a pneumothorax and a tension pneumothorax when he makes which statement?
A) "A tension pneumothorax causes blood to accumulate around the lung; a pneumothorax involves the accumulation of only air around the lung." B) "A tension pneumothorax causes cardiac output to decrease; a simple pneumothorax does not affect cardiac output." C) "A pneumothorax describes a collapsed lung; a tension pneumothorax involves both a collapsed lung and blood loss." D) "A pneumothorax is caused by a closed chest injury; a tension pneumothorax is caused by an open chest injury."
In the mid-1900s, Dr. William Cullen advanced the idea that the nervous system was responsible for maintaining the physiological balance of all organs within the body.
Answer the following statement true (T) or false (F)
The greatest limitation to patient use of a dry powder inhaler (DPI) is
a. patient preference. b. patient coordination. c. patient ability to provide an inspiratory flow rate of 30 to 90 L/min. d. cost.