If limb lead III has tiny waves (i.e. nearly a flat line), while leads I and II have large waves, this is because:

Question

a.the subject is not grounded
b. leads I and II have mirror image R waves and cancel out
c. the left arm electrode is not connected
d. the subject has a cardiac disorder
e. the mean electrical axis is perpendicular to lead III electrodes



If your MP100 is recording at 10 sps and your input analog signal is at 100Hz, how many waves would the data acquisition miss in a 5 s recording?

a. 50
b. 1000
c. 25
d. 500
e. 100

Answer 1

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