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.
Certification Needed to Become an Industrial Hygienist. Certification is not typically mandatory in order to work as an occupational hygienist, though most practitioners choose to become certified through the Canadian Registration Board of Occupational Hygienists (CRBOH) .