Anterior wall myocardial infarctions are most often a result of ...

[darbym82]

Anterior wall myocardial infarctions are most often a result of an occlusion of a branch of the _____ coronary artery.
 
  a. left
  b. right

Question 2

An ECG machine's sensitivity must be calibrated so that a 1-mV electrical signal will produce a deflection measuring exactly _____-mm tall.
 
  a. 0.5
  b. 1
  c. 5
  d. 10

[Animal_Goddess]

Answer to Question 1

Thank you soo much

Answer to Question 2

D
The ECG machine's sensitivity must be calibrated so that a 1-mV electrical signal will produce a deflection that measures exactly 10-mm tall. When properly calibrated, a small box is 1-mm high (i.e., 0.1 mV), and a large box, which is equal to five small boxes, is 5 mm high (i.e., 0.5 mV).

[darbym82]

Wow, this really help

[helenmarkerine]

Thanks for the timely response, appreciate it