Practice Test Geeks(CCT) Certified Cardiac Technician Practice Test
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CCT Cardiac Diagnostic Testing & Equipment Flashcards

6 cards from real CCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 CCT Cardiac Diagnostic Testing & Equipment flashcards as text

  1. ST-segment depression in leads V4–V6 during exercise stress testing is most indicative of:

    Answer: Left anterior descending (LAD) artery ischemia

    Horizontal or downsloping ST depression in the anterior and lateral leads during exercise indicates subendocardial ischemia in the LAD distribution.

  2. When preparing a patient for a nuclear stress test, the cardiac technician should ask about use of which substances that must be withheld beforehand?

    Answer: Caffeine and certain heart medications that affect the test

    Caffeine blocks adenosine receptors and can negate pharmacologic stress; certain medications like beta-blockers must also be withheld to allow maximum heart rate response.

  3. A wide QRS complex (>120 ms) on ECG in a patient with known cardiac disease most likely represents:

    Answer: Bundle branch block or ventricular conduction delay

    A QRS duration exceeding 120 ms indicates slowed ventricular depolarization, typically due to left or right bundle branch block or other intraventricular conduction delay.

  4. During cardiac catheterization, which artery is most commonly used as vascular access in the United States?

    Answer: Radial artery

    The transradial approach has become the preferred access site in the U.S. due to lower rates of bleeding complications and earlier patient ambulation compared to femoral access.

  5. A normal pulmonary capillary wedge pressure (PCWP) range during right heart catheterization is:

    Answer: 6–12 mmHg

    PCWP of 6–12 mmHg reflects normal left atrial pressure; values above 18 mmHg indicate elevated left-sided filling pressure consistent with left heart failure or mitral disease.

  6. A QTc interval greater than 500 ms on a 12-lead ECG is clinically significant because it indicates:

    Answer: Increased risk of torsades de pointes ventricular tachycardia

    A prolonged corrected QT interval reflects delayed ventricular repolarization, creating a vulnerable window during which triggered activity can initiate torsades de pointes.