What are the two cardiac function tests mentioned in radiopharmacy?

The correct answer highlights two important cardiac function tests used in the field of radiopharmacy: first pass imaging and Multi-Gated Acquisition (MUGA) scan.

First pass imaging is a technique used to assess myocardial perfusion by observing the passage of a radiopharmaceutical through the heart and its chambers, providing valuable information on the heart's function during a single circulation time. This is useful for evaluating blood flow and overall heart function.

The MUGA scan, on the other hand, is specifically designed to visualize the heart's wall motion and functional capacity over time, and it assesses the ejection fraction, which is crucial for understanding how well the heart is pumping blood. This highly reliable method takes advantage of the radiotracers to provide a clear picture of cardiac performance.

These two tests are critical in diagnosing and managing various cardiac conditions, emphasizing the role of radiopharmacy in ensuring accurate imaging and assessment of heart function. They are fundamental in the context of cardiac diagnostics, contrasting with the other options, which represent various imaging modalities or monitoring tools that do not specifically function as cardiac tests in the context of radiopharmacy.