Cardiac Catheterization | Johns Hopkins Medicine
https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/cardiac-catheterization
WebIn cardiac catheterization (or cath), your healthcare provider puts a very small, flexible, hollow tube (catheter) into a blood vessel in the groin, arm, wrist, or in rare cases the neck. Then your provider threads it through the blood vessel into the aorta and into the heart. Once the catheter is in place, several tests may be done.
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