________ is the X-ray visualization of the internal anatomy of blood vessels after a radiopaque material has been injected into the blood vessels.
a. Mammography
b. Arthrography
c. Angiography
d. Myelography
Question 2
Respiratory rate refers to the number of respirations per minute and can be described as normal, rapid, or slow. All of the following respiratory rates would be considered a serious problem EXCEPT ________.
a. below 8
b. above 45
c. below 40
d. above 60