Home O2 therapy can be justified in patients with PaO2 values greater than 55 mm Hg in which of the following conditions? 1. Cor pulmonale 2. Erythrocythemia (hematocrit >56%) 3. Congestive heart failure 4. Peripheral vascular disease
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: B
To guide practitioners in providing quality care, the AARC has published a Clinical Practice Guideline on Oxygen Therapy in the Home or Extended Care Facility. Excerpts appear on p. 1291-1292.
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You have been caught in a flash flood and have underestimated the depth of the water and the strength of the current. As you float downstream, you notice a partially submerged tree in the water. Which of the following approaches should you take?
A) Relax your body and let the current carry you. B) Try to swim over to the tree. C) See if you can touch your feet on the ground to steady yourself. D) Try to dive under the tree.
Which of the following system types is typically used where it is important to prevent water damage?
A. Dry-pipe system B. Preaction system C. Water-mist system D. Partial deluge system