Homework Help: Bio

Posted by Alex on Monday, September 28, 2009 at 5:37pm.

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

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

Bio - SraJMcGin, Monday, September 28, 2009 at 6:09pm
Please try here:

http://www.google.com/search?q=why+does+limb+lead+III+have+tiny+waves+while+I+and+II+have+large+ones&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Wra
Bio - clever, Monday, September 28, 2009 at 9:06pm
learned how to do wild life

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