A sample is collected
Some liquid biopsy tests use a blood sample. The sample type and collection process depend on the specific test.
A patient education resource
Learn about liquid biopsy testing and the questions to discuss with a qualified healthcare professional.
This site is educational only. It does not offer, order, or recommend a specific test.

Test methods and intended uses vary by test.
Liquid biopsy, explained
Liquid biopsy is a broad term for tests that analyze biological material in a body fluid. The sample, markers, purpose, and limitations depend on the specific test.
Some liquid biopsy tests use a blood sample. The sample type and collection process depend on the specific test.
A laboratory looks for selected biological material or markers. What is measured differs between tests.
A healthcare professional can explain what a particular result may mean and what it cannot tell you.
Important context
Different tests are designed to look for different things. A test’s intended use, performance, limitations, and regulatory status are specific to that test.
Results should be interpreted with your healthcare professional and in the context of other information about your health. A liquid biopsy is not intended to replace other testing your clinician may recommend.
Ask which biological markers the specific test analyzes and which it does not.
Ask what the result may mean for you, and what follow-up may be appropriate.
Ask about evidence, limitations, and the test’s specific regulatory status.
Start with a conversation
A qualified professional can help you understand whether a specific test fits your individual situation.
Reading and updates
Educational articles and updates will appear here as Penny publishes them.