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.
Becoming a hygienist requires completion of an accredited dental hygiene program as well as a state license. According to the American Dental Hygienists' Association (ADHA), there are education programs offering associate's (86 credit hours) and bachelor's degrees (122 credit hours). Degree programs should be accredited by CODA (Commission on Dental Accreditation).