NU664B UPDATED ACTUAL Exam
Questions and CORRECT Answers
An infarct means? - CORRECT ANSWER cardiac tissue death
Anterior septal MI would have changes in what leads? - CORRECT ANSWER V1-V4
AV node - CORRECT ANSWER atrioventricular node
40-60 bpm
horizontal axis - CORRECT ANSWER time
How do you identify cardiac injury on EKG? - CORRECT ANSWER elevated ST
segment
elevated ST = acute infarct
ST depression=sub-endocardial MI, does not transverse the entire myocardial wall
ST depression w/exercise= reduced myocardial blood supply
How do you identify ischemia on EKG? - CORRECT ANSWER inverted t waves in
affected areas
it can occur with or without infarction
you see transient twave inversion with angina
How do you measure LVH on an EKG? - CORRECT ANSWER measure depth (mm) of s
wave in V1 & add height (mm) of R wave in V5, if greater than 35mm it is consistent with LVH
if QRS - in both lead I and in lead avF - CORRECT ANSWER this is extreme axis
deviation between 180 & -90
Questions and CORRECT Answers
An infarct means? - CORRECT ANSWER cardiac tissue death
Anterior septal MI would have changes in what leads? - CORRECT ANSWER V1-V4
AV node - CORRECT ANSWER atrioventricular node
40-60 bpm
horizontal axis - CORRECT ANSWER time
How do you identify cardiac injury on EKG? - CORRECT ANSWER elevated ST
segment
elevated ST = acute infarct
ST depression=sub-endocardial MI, does not transverse the entire myocardial wall
ST depression w/exercise= reduced myocardial blood supply
How do you identify ischemia on EKG? - CORRECT ANSWER inverted t waves in
affected areas
it can occur with or without infarction
you see transient twave inversion with angina
How do you measure LVH on an EKG? - CORRECT ANSWER measure depth (mm) of s
wave in V1 & add height (mm) of R wave in V5, if greater than 35mm it is consistent with LVH
if QRS - in both lead I and in lead avF - CORRECT ANSWER this is extreme axis
deviation between 180 & -90
