Question

What was the historical use of cellophane tubes in hemodialysis?

• A. Providing structural support to dialysis machines
• B. Acting as semipermeable membranes
• C. Delivering medication to patients
• D. Filtering blood cells directly

Hint:

Semipermeable membranes are crucial in hemodialysis as they allow the selective removal of waste products and excess fluids from the blood while retaining necessary blood components.