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What To Expect Before Thoracentesis

Before thoracentesis, your doctor will talk to you about the procedure and how to prepare for it. Tell your doctor:

  • Whether you're taking any medicines and which ones you're taking
  • About any previous bleeding problems you've had
  • Whether you have allergies to medicines or latex

No special preparations are needed before thoracentesis.

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Thoracentesis Clinical Trials

Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. To find clinical trials that are currently underway for Thoracentesis, visit

February 24, 2012 Last Updated Icon

The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.