The diagnostic procedure that directs high-frequency sound waves through the skin over the area of the body being examined and produces an image based on the echoes is called ____.
A. cholecystography
B. a CT scan
C. ultrasound
D. an MRI
E. nuclear medicine
C. ultrasound
Ultrasound directs high-frequency sound waves through the skin over the area of the body being examined and produces an image based on the echoes.
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The Valsalva maneuver makes use of the sensitivity of which of the following nerves?
A) Phrenic B) Cranial C) Paranasal D) Vagus
Heat flowing from a surface of greater temperature to one of lesser temperature by direct contact BEST explains the concept of:
A) radiation. B) convection. C) conduction. D) evaporation.
In addition to regular breast examinations, all women in good health should be encouraged to have a(n) ________ every year starting at age 40.
Fill in the blank(s) with the appropriate word(s).
In contrast to low-angle rope rescues, high-angle rescues:
A) involve situations where the patient must be removed from a cliff or other high area that is more than 50 feet from the ground. B) are situations where the slope of the ground is greater than 45° and the rescuers are dependent on the fixed surface of the ground. C) involve any situation in which the ground is used as primary support and the rope system is used as a secondary means of support. D) involve situations where the slope of the ground is greater than 45° and rescuers or patients are dependent on a life safety rope.