Which factor stimulates the carotid and aortic chemoreceptors?
a. High carbon dioxide levels
b. High oxygen (O2) levels
c. High pH levels
d. High 2,3-DPG levels
ANS: A
They are strongly stimulated by decreased O2 tensions, although low pH or high levels of carbon dioxide also can increase their discharge rate.
You might also like to view...
What must be done to the concentration of a medication if it is given endotracheally?
A) 2 to 2.5 times normal IV dose B) 1.5 times normal IV dose C) Same as IV dose D) 3 times the IV dose
Which of the following will the user select to send the routing slip to the PMS interface?
A. [Finish] B. [Send] C. [Export] D. [Done]
A patient underwent coronary artery bypass graft, three venous vessels. This is a repeat CABG because the patient previously underwent CABG surgery five years ago during which two coronary venous grafts were performed. Report code(s) _____
a. 33511 b. 33512 c. 33512, 33511-51 d. 33512, 33530
For adults, a body mass index (BMI) of ________ is associated with the lowest risk of health problems.
A. 25 to 30 B. 10 to 15 C. 15 to 20 D. 20 to 25