Which of the following occurs if the metal tip of a lead wire becomes detached from an electrode?
a. Alternating current artifacts
b. Muscle artifacts
c. Wandering baseline
d. Interrupted baseline
d
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The body's "second line of defense" against disease and infection is its:
A) Specific defense mechanisms. B) Nonspecific defense mechanisms. C) Antibodies. D) Macrophages.
When potential backdraft conditions exist in a compartment, the space is filled with unburned fuel that is:
A. at or above ambient temperature. B. at or below ambient temperature. C. at or above its ignition temperature. D. at or below its ignition temperature.
The main parameter that the ventilator manipulates for any given breath is referred to as which of the following?
a. Control circuit c. Control variable b. Phase variable d. Cycle variable
A systemic hypersensitivity reaction is known as:
a. anaphylaxis b. asthma c. allergy d. hay fever