An ultrasound procedure that evaluates blood flow in an effort to ...

[lak]

An ultrasound procedure that evaluates blood flow in an effort to determine the cause of a localized reduction in blood flow is:
 
  A) Doppler sonography
  B) positron emission tomography
  C) myocardial radionuclide perfusion scan
  D) angioscopy

Question 2

Select the prefix that means through or across.
 
  A) trans-
  B) tetra-
  C) circum-
  D) dys-

[Dinolord]

Answer to Question 1

A
Explanation: If you do not know the tests, break down the choices. The question indicates that sound is utilized, so the answer should have the root son and suffix -graphy, recording process. Although perfusion, which is analysis of blood flow, is another choice, utilizing term breakdown, we see why sonography is correct.

Answer to Question 2

A
Explanation: The other prefixes mean: tetra-, four; circum-, around; and dys-, bad, abnormal, painful, difficult.

[lak]

Excellent

[xiazhe]

Thanks for the timely response, appreciate it