CEN Sample Test Questions & Correct Answers
CEN Sample Test Questions & Correct Answers Right ventricular infarction (RVI) lead changes - ANSWER : II, III, AVF R ventricular infarction s/s - ANSWER : clear breath sounds, hypotension, JVD. R ventricular dilation and dec contractility dec preload and CO Reperfusion therapy standard - ANSWER : Within 60 min of ED arrival Common causes of PEA - ANSWER : Hypoxia, tension pneumo, cardiac tamponade BNP as a marker - ANSWER : of L ventricular dysfunction bc ventricles make BNP and an inc of over 100 pg/ml indicates symptomatic HF Transcutaneous pacing (TCP) - ANSWER : A beat after every pacer spike is electrical capture. Beats are wide complex bc ventricle is paced. Palpate central pulse, pt may still be hypotensive w/ diminished or absent peripheral pulses. Preferred tx with symptomatic brady esp in pts with acute MI Wolff Parkinson-White (WPW) syndrome - ANSWER : shortened PR interval and widened QRS complex with a delta wave. When there is an extra electrical conduction path to heart causing electrical signal to arrive too soon at ventricle (pt presents in tachy) Brugada syndrome - ANSWER : R bundle branch block with ST segment elevation in leads V1-V3 and inc risk of sudden cardiac death (SUDS), common in young men
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