What is venous sampling?

A procedure in which a sample of blood is taken from a certain vein and checked for specific substances (like hormones) released by nearby organs and tissues. A higher than normal amount of a substance can be a sign of disease in the organ or tissue that makes it.

What can I expect during this procedure?

A small catheter is inserted into a vein in the groin or neck under local anesthesia and using real-time radiologic guidance, a catheter is positioned into the necessary veins. A small amount of blood is then sampled from these veins which drain the specific organ in question (e.g., kidneys, adrenal glands and pancreas). This procedure is typically performed on an outpatient basis and the recovery time can be as short as a few hours.

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