Intravascular

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The term intravascular or intravascular (from lat. Intra "in", "inside", "inside" and vas "vessel") means on the one hand "located in a blood vessel or lymph vessel " (e.g. a blood clot in the vein) on the other hand, the administration of substances (drugs, diagnostics , etc.) into a blood or lymphatic vessel.

The intravascular application can consciously i. E.g. an injection or an infusion or accidentally (accidental intravascular injection when attempting an intramuscular injection, for example ).

More precise specifications of intravascular are the terms intravenous (in the vein), intraarterial (in the artery) or intralymphatic (in the lymphatic system; e.g. application of an X-ray contrast medium directly into a lymphatic system for the purpose of ascending lymphography ).

The opposite term is extravascular or extravascular (extra: Latin "outside", "beyond something"), ie not "located in a blood vessel or lymphatic vessel" (e.g. a blood clot in the urine). An extravascular application of substances takes place, for. B. as intramuscular injection , subcutaneous injection , peroral medication or by suppository .