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CRAT STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS RATED A+

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CRAT STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS RATED A+

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CRAT STUDY GUIDE QUESTIONS WITH CORRECT
ANSWERS 2026-2027 RATED A+

Normal PRI interval - CORRECT ANSWER -0.12-0.20



Normal QRS interval - CORRECT ANSWER -0.11 or less



What does the P wave represent? - CORRECT ANSWER -Atrial depolarization



What does the QRS complex represent? - CORRECT ANSWER -Atrial repolarization and
ventricular depolarization



Q wave indicates what? - CORRECT ANSWER -Dead myocardial tissue. Always a negative
deflection



What is the natural pacemaker of the heart? - CORRECT ANSWER -SA node



3 types of pacemakers - CORRECT ANSWER -1) single (either RA or RV)

2) dual chamber (RA and LV)

3) bi-ventricular (RV and LV --> Congestive Heart Failure)



Which HB would you NOT need a pacemaker for? - CORRECT ANSWER -First-degree AV block
(prolonged PRI >0.20 seconds)



Define intrinsic beats - CORRECT ANSWER -The patient's own heart beat



What is sensing? - CORRECT ANSWER -The ability for the heart to sense and respond to the
electrical activity of the heart

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