Experience the Quality With Free CCT Exam Questions That Helps Candidates Pass

During exercise, systolic BP rises proportionally with increased cardiac output, while diastolic BP remains stable or may decrease slightly due to vasodilation. A drop in systolic BP or sharp rise in diastolic BP is abnormal and may require test termination. Recognizing normal vs. abnormal responses is essential for safety and accurate interpretation.

The right precordial lead V1 often shows a deep S wave as depolarization moves away from the electrode toward the left ventricle. V2 may also show deep S waves but usually less pronounced than V1. V5 shows tall R waves, reflecting left ventricular forces. aVR shows global negativity but not the deepest S wave. Recognizing these patterns helps assess R-wave progression.

Fatigue, shortness of breath, or leg discomfort are the most common reasons patients request test termination. While ischemic changes or dangerous arrhythmias are absolute reasons to stop, fatigue is the most frequent cause in practice. Patient-reported tolerance always guides the test.

Idioventricular rhythm originates in the ventricles when higher pacemakers fail. It is slow (20–40 bpm), wide-complex, and lacks consistent P waves. Junctional bradycardia is 40–60 bpm with narrow QRS. Sinus bradycardia has P waves. AF is irregularly irregular. Idioventricular rhythm may occur post-MI and requires close monitoring due to risk of deterioration.

Idioventricular rhythm originates in the ventricles with rates of 20–40 bpm, wide QRS complexes, and no consistent P waves. Sinus bradycardia has sinus P waves. Junctional escape is narrow QRS at 40–60 bpm. Third-degree block shows AV dissociation. Idioventricular rhythm often follows MI and may require pacing if symptomatic.