An adult patient with asthma is receiving a mixture of 70% helium and 30% oxygen through a nonrebreathing mask with an oxygen flowmeter set at 10 L/min. What is the actual flow being delivered to the mask?

Which of the following statements regarding masonry structure is MOST accurate?

A) Basic masonry construction is also known as ordinary construction. B) The most basic masonry structure consists of exterior non-load-bearing masonry walls. C) Traditional masonry structure is classified as Type IV construction. D) The live loads of a traditional masonry building are transferred to the bearing walls through posts and beams.

Which of the following are acceptable methods of documenting the presence of hypoxemia in patients being considered for home O2 therapy?

1. Blood gas analysis 2. Pulse oximetry 3. Physical examination a. 1 and 2 only b. 2 and 3 only c. 1 and 3 only d. 1, 2, and 3