Before cardiac catheterization after a stress test, which information would you expect to be available?

Before cardiac catheterization after a stress test, which information would you expect to be available?

• A. Coronary anatomy
• B. Left ventricular function
• C. Hemodynamics
• D. Perfusion results

Answer: (D)

Perfusion results from the stress-imaging study are the information you’d expect to have before moving on to invasive angiography. During stress imaging, you map how blood flows to the heart muscle under stress and look for areas with reduced uptake that indicate ischemia. These perfusion findings guide the decision to proceed with catheterization: reversible defects suggest viable myocardium at risk and a potential culprit lesion, while a normal perfusion study may spare the patient from an invasive procedure. Coronary anatomy isn’t revealed by the stress test itself; that requires invasive angiography (or alternative imaging like CT angiography). Left ventricular function and real-time hemodynamics are typically assessed with other tests or during the catheterization itself, not from the stress perfusion results.

Perfusion results from the stress-imaging study are the information you’d expect to have before moving on to invasive angiography. During stress imaging, you map how blood flows to the heart muscle under stress and look for areas with reduced uptake that indicate ischemia. These perfusion findings guide the decision to proceed with catheterization: reversible defects suggest viable myocardium at risk and a potential culprit lesion, while a normal perfusion study may spare the patient from an invasive procedure.

Coronary anatomy isn’t revealed by the stress test itself; that requires invasive angiography (or alternative imaging like CT angiography). Left ventricular function and real-time hemodynamics are typically assessed with other tests or during the catheterization itself, not from the stress perfusion results.