Ischmia and infarct can be easily evaluated in the presence of Bundie Branch Blo

Question

Ischmia and infarct can be easily evaluated in the presence of Bundie Branch Block 38-Jn a Bundle Branch Block, the ventricle with the blocked bundle is depolarized last. 39To recognize Bundle Branch Block it is necessary to measure the QRS width Multiple Choice. ECG rhythm strip shows a regular ventricular rhythm at a rate of 128 bpm, one upright P wave before each QRS, a constant PR interval of .24 second. The rhythm is econd and a QRS duration of o.08 a. Third degree block b. Second degree block, type c. Sinus tachycardia with first degree AV block d. Junctional tachycardia with first degree AV block 1 Third degree block is characterlzed by a. Irregular P to P intervals b. Irregular R to R Intervals c. Regular P to P Intervals and regular R to R intervals d. Regular P to P intervals and irregular R to R intervals Which of the following is the best lead to distinguish LBB8 and RBB8? a.Lead d. Lead aVR

Explanation / Answer

Ans 37 : Myocardial

Myocardial ischemia and infarction can be easily evaluated as they can be detected on ECG , when bundle branch block is present.

In such a case QRS duration increases and bunny ear pattern is observed in V1-V3 leads.

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