Which of the following are periods of no gas flow during negative pressure ventilation?
I. Inspiration
II. End inspiration
III. Expiration
IV. End expiration
a. II only c. IV only
b. I and III only d. II and IV only
d. II and IV only
Health Professions
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What dressings can be used to help reduce or prevent scarring of healed, intact, burned skin?
A. A vaseline-impregnated gauze covered with a gauze pad, secured with elastic netting B. A semipermeable film C. A hydrocolloid D. Silicone gel sheeting
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During hypoxemia, the mucous membranes of the ____ are often the first areas to become cyanotic.
A. nose B. lips and tongue C. eyes D. ears
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Alcohol affects the central nervous system as a(n)
a. stimulant. b. depressant. c. antidepressant. d. no effect.
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An example of a macromineral includes
A) Calcium B) Fluoride C) Zinc D) Iron
Health Professions