A nurse in a surgeon’s office is providing preoperative teaching for a client who is scheduled for surgery the following week. The client tells the nurse that “I plan to prepare my advance directives before I come to the hospital.” Which of the following statements made by the client indicates an understanding of advance directives?

What percentage of total blood volume circulates in the brain?

Select the number of significant digits in the following value: 2.006

¿Formal o informal? 3

Select the chemical formula that is not an empirical formula.

Juan es…

A log burns in a fireplace. Which choice best describes the energy conversion?

Select the correct isotopic symbol for polonium-210.

Pedro es…

Uno, tres, cinco, , nueve, once…