Final answer:
A paracentesis is a medical procedure that involves puncturing an area to sample fluid for analysis.
Step-by-step explanation:
Doctors are going to perform a paracentesis on Vance because an x-ray showed fluid around his heart. This procedure involves using a needle to puncture the area and obtain a sample of the fluid for analysis. It does not create a hole in his heart nor involve recording a graph of his heartbeat or inserting a camera down his throat.
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