A dialysis catheter is a catheter used for exchanging blood to and from a hemodialysis machine and a patient. The dialysis catheter contains two lumens: venous and arterial. This terminology is confusing, because both lumens are in the vein.
In order to practice as a dental hygienist, one needs a degree from a dental hygiene school and a state license. To become licensed, dental hygienists need to pass a clinical and written exam.
Licensure is granted by each individual state. Dental hygienists practice in accordance with requirements of individual state dental practice acts. In virtually every state, several steps are required before a license can be granted: Graduation from an accredited dental hygiene program.