If you have to deliver medical gas to a patient from a compressed gas cylinder, which of the fol-lowing devices would you select to control gas flow?
a. Regulator
b. O2 blender
c. Reducing valve
d. Flowmeter
ANS: D
If the goal is to control gas delivery to a patient for O2 therapy or nebulized medication (see Chapters 36 and 38), a flowmeter must also be used.
Health Professions
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An infant's head is equal to 25 percent of his total body weight
Indicate whether the statement is true or false
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Which of the following are included in the Berlin definition of moderate ARDS? 1. Bilateral infiltrates on chest radiograph 2. Absence of left ventricular failure 3. PaO2/FiO2 100 – 200 mm Hg 4. Oxygenation index (OI) less than 10
a. 1 and 3 only b. 1, 2, and 3 only c. 2 and 4 only d. 1, 2, 3, and 4
Health Professions