Some degree of apprehension or fear is normal and should be expected. This discomfort disappears when the test is completed. You may also feel uncomfortable for a short while if small, enclosed space causes you discomfort. Description of test You or a close relative will be required to sign a consent form after the procedure has been explained to you. Skin is cleaned with antiseptic.
Local anesthetic is injected into skin overlying the spleen then into deeper tissues.
You may feel a brief stinging sensation when local anesthetic is injected. Hold your breath. Sheathed needle is inserted into the spleen. A flexible tube is attached to the sheath and connected to the manometer to measure pressure. The flexible tube is removed.