When was the first Venti-mask introduced that allows the precise delivery of 24%, 28%, 35%, and 40% O2?
a. 1945
b. 1954
c. 1960
d. 1972
ANS: C
The Campbell Venti-mask, which allowed the administration of 24%, 28%, 35%, or 40% O2, was introduced in 1960.
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A 42-year-old man was working at a construction site when a pallet of bricks fell on him, striking him in the chest. He is lying supine on a concrete floor. The bricks have been removed by coworkers. He responds to your voice, but is anxious and confused. His skin is mottled, especially above the shoulders, and cool. He is sweating profusely. His airway is open, and his breathing is shallow at 34
times per minute. He has a weak radial pulse of 130. He has bruising to the chest, but no deformity, crepitus, or abnormal motion. You should: A) secure a firm object, such as a clipboard or book, over the injured area. B) move him into a sitting position and ask him to hold a pillow against the injured area. C) manually stabilize the spine and ventilate him. D) manually stabilize the spine, apply oxygen by nonrebreather mask, and elevate his legs.
What is the minimum amount of time that blood must take for pulmonary capillary transit for equilibration of O2 to occur across the alveolar-capillary membrane?
a. 0.15 sec b. 0.25 sec c. 0.35 sec d. 0.45 sec
In which field locator is the diagnosis on admission reported?
a. 70 b. 69 c. 68 d. 67
Answer the following statement(s) true (T) or false (F)
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