Final answer:
Dialysis is required for patients with kidney failure to remove waste from the blood, with the availability of dialysis machines sometimes affecting the price. Hemodialysis is one of the methods used, and conditions like kidney stones, infections, and diabetes can lead to such kidney issues.
Step-by-step explanation:
Dialysis is a lifesaving medical treatment required by individuals whose kidneys have failed. These patients need a dialysis machine to remove waste products such as urea from their blood, effectively replacing the function of the kidneys. In the case of renal failure, without either regular dialysis or a kidney transplant, a patient would not survive.
Considering the critical nature of dialysis for patients with kidney failure, there is a significant demand for these machines. However, their availability and supply often dictate the price. The supply and demand for dialysis machines can be analyzed using supply and demand diagrams, which would highlight the importance of supply in determining price. Particularly, when the supply is limited, and the demand is relatively inelastic due to the necessity of the procedure, prices can be higher.
Hemodialysis systems use cellophane tubes to filter the blood, and this procedure is typically performed several times a week. Kidney diseases such as stones, infections, and diabetes can necessitate the need for dialysis if they lead to kidney dysfunction or failure.