A Hawley appliance is an example of a(n) ____________
a. activator
b. retainer
c. tooth positioner
d. lingual archwire
b
RATIONALE: A Hawley appliance is an example of a retainer.
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In what year and city was the first U.S. college of pharmacy established?
A) 1729, Philadelphia B) 1751, Boston C) 1821, Philadelphia D) 1852, Boston
You are the first to arrive on the scene of a collapse of a balcony at an apartment building. You are met by a man whose arm is nearly severed, and you can see exposed bone and muscle tissue. Bleeding seems to be minimal. What is your next course of action?
A) This is a life-threating injury, so treat it immediately and call for additional resources. B) This is an "open incident," so using START he is a "green" patient. Have him sit in a safe area, apply a basic dressing to control bleeding, and, if possible, find someone to monitor him. Perform the scene size-up and triage. C) This is a "closed incident." Perform a scene size-up and treat this patient. Any other incoming units can continue treating people as they are found. D) Take him to the ambulance.
Which one of the following actions is appropriate when using a helicopter on the scene of an emergency?
A) Always approach the helicopter from behind and never from the front. B) Always approach the helicopter from the front and never from behind. C) Keep all EMS and rescuer personnel at least 50 feet from the helicopter as it lands. D) Point a spotlight at the helicopter to indicate the location of the landing zone.
The metal housing of the tube head increases the safety of the x-ray machine
Indicate whether the statement is true or false