Author Question: Anterior wall myocardial infarctions are most often a result of an occlusion of a branch of the ... (Read 92 times)

darbym82 · **on:** Jun 25, 2018

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 · **Reply #1 on:** Jun 25, 2018

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).