All About Cardiovascular System and Disorders

Predictors of response to CRT: female, nonischemic, LBBB, QRS >/= 150 msec, prior hospitalization for HF, LVEDV >/= 125 mL/sq m, LA volume < 40 mL/sq m

QT interval is not increased with: a) Acidosis b) Hyperkalemia c) Hypercalcemia d) Digoxin e) All of the above f) None of the above

Poor R wave progression in chest leads is seen with: a) AWMI b) RBBB c) RVH d) RV infarction

Platypnea-orthodeoxia is characterized by dyspnoea and systemic oxygen desaturation on assuming the sitting or standing position.

Least useful for diagnosis of reinfarction after a recent myocardial infarction: a) CPK b) CPK-MB c) Troponin T d) Myoglobin

Atrial rate always equal to ventricular rate in:</strong> a) AVRT b) Atrial tachycardia c) Bundle branch re-entry d) Atrial flutter with bypass tract

Regarding concealed AV bypass tract, true statement: a) VA conduction does not occur b) Does not participate in AVRT c) VF will not occur if AF develops d) None of the above e)

Event farthest from the QRS is: a) Z point of atrial pressure tracing b) Onset of rise of aortic pressure c) Onset of isovolumetric contraction d) Closure of mitral valve

Components of mitral valve apparatus: mitral annulus, mitral leaflets, chordae tendinae, papillary muscles and adjoining portions of the LV and LA.

Universal definition of myocardial infarction has been under the joint auspices of the ESC, ACCF, AHA and World Heart Federation.