Which of the following clinical signs is not consistent with the onset of RDS?
a. Grunting
b. Retractions
c. Nasal flaring
d. Cyanosis
ANS: D
After tachypnea, worsening retractions, paradoxical breathing, and audible grunting are ob-served. Nasal flaring also may be seen.
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An environment that is free from all forms of life is __________________________________________
Fill in the blank(s) with correct word
Which of the following gases is used to decrease the work of breathing associated with severe airway obstruction?
a. Nitric oxide c. Helium-oxygen mixture b. Nitrous oxide d. Carbon diox-ide–oxygen mixture
Which of these is NOT a component of dental x-ray film?
a. Protective layer b. Base c. Phosphor crystals d. Emulsion
Hyperbaric oxygen therapy:
A) increases the PaO2 B) increases oxygen saturation (SaO2) C) decreases elimination of carbon monoxide D) increases the size of dissolved gas bubbles