Showing posts with label 12-lead electrocardiogram. Show all posts
Showing posts with label 12-lead electrocardiogram. Show all posts

Wednesday, 5 September 2012

12-lead electrocardiogram

Regarding misplacement of limb leads prior to recording a 12-lead electrocardiogram, the following misplacements would mimic the stated condition EXCEPT which one?

a) Left-arm electrode and right-arm electrode switch – dextrocardia
b) Right-leg electrode and right-arm electrode switch – pericardial effusion
c) Left-arm electrode and left-leg electrode switch – inferior myocardial infarction
d) Right-leg electrode and left-leg electrode switch – true posteriormyocardial infarction
e) Clockwise rotated limb leads (with right leg correctly sited) – extra-nodal atrial rhythm