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NU664B UPDATED ACTUAL Exam Questions and CORRECT Answers

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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 AV node - CORRECT ANSWER 40-60 bpm horizontal axis - CORRECT ANSWER atrioventricular node time

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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

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