CVT Cardiac Catheterization Procedures 3

Question 1

Which pressure waveform abnormality on right heart catheterization indicates severe tricuspid regurgitation?

Accepted Answer

Giant V-waves in right atrial pressure trace

Answer

Severe tricuspid regurgitation causes large V-waves in the right atrial pressure trace due to systolic backflow into the atrium.

Question 2

During coronary angiography, the LAD is found to supply both the anterior wall and the inferior wall of the left ventricle. This pattern is called a:

Accepted Answer

Wrap-around LAD

Answer

A wrap-around LAD extends past the cardiac apex to supply the inferior wall, which is normally supplied by the RCA.

Question 3

What is the significance of a fractional flow reserve (FFR) value of 0.75 in a coronary stenosis?

Accepted Answer

The lesion is hemodynamically significant and warrants revascularization

Answer

An FFR ≤0.80 (commonly cutoff 0.75-0.80) indicates a hemodynamically significant lesion that benefits from revascularization.

Question 4

A patient undergoing cardiac catheterization develops a sudden onset of hives, bronchospasm, and hypotension after contrast injection. What is the first-line treatment?

Accepted Answer

Epinephrine 0.3 mg IM or IV

Answer

Epinephrine is the first-line treatment for anaphylaxis because it reverses bronchospasm, vasodilation, and urticaria simultaneously.

Question 5

During ventriculography, the technologist observes an hourglass appearance of the left ventricle. This finding is associated with which condition?

Accepted Answer

Hypertrophic obstructive cardiomyopathy (HOCM)

Answer

HOCM causes dynamic mid-cavity obstruction that produces an hourglass or figure-8 appearance during systole on ventriculography.

(CVT) Cardiovascular Technologist Certification Practice Test

(CVT) Cardiovascular Technologist Certification Practice Test

CVT Cardiac Catheterization Procedures 3