Name two substances commonly monitored for abnormalities in urine composition.
Glucose and amino acids are frequently assessed for deviations from normal levels in urine.
What physiological processes should you consider when analyzing abnormal urine composition?
Consider selective reabsorption and ultrafiltration. Deviations suggest issues like a damaged basement membrane or high blood pressure.
What are three potential treatments for kidney failure?
The three treatments mentioned are hemodialysis, peritoneal dialysis, and kidney transplant.
Describe the process of hemodialysis.
Blood is taken from a vein, pumped through a machine where it passes over a membrane with dialysis fluid, allowing solute exchange before being returned to the body.
What is the purpose of heparin in hemodialysis?
Heparin is an anticoagulant drug used to prevent blood clots from forming within the hemodialysis machine and in the patient.
Why is it important to remove air bubbles before returning blood to the body in hemodialysis?
Removing air bubbles prevents potential damage to the individual when the blood is reintroduced.
What is an advantage of hemodialysis?
Hemodialysis cleanses the blood and can be done at home.
What is a disadvantage of hemodialysis?
It requires regular treatments (every few days), which can hinder work and family life.
How often is hemodialysis typically performed?
Hemodialysis is typically performed three times a week for a few hours each session.
What type of membrane is used in hemodialysis?
A partially dependable membrane is used, with dialysis fluid flowing in the opposite direction.
What is the role of water potential in hemodialysis?
Water potential is used to adjust the water concentration of the blood during hemodialysis.
What is the goal of glucose concentration adjustment in hemodialysis?
The goal is to maintain the correct glucose concentration in the blood.
Describe the process of peritoneal dialysis.
Dialysis solution is pumped into the abdominal cavity, where solute and water exchange occurs across the peritoneal membrane.
Where does the exchange of solutes and water occur in peritoneal dialysis?
The exchange occurs across the membrane surrounding the intestines within the abdominal cavity.
What is an advantage of peritoneal dialysis compared to hemodialysis?
Peritoneal dialysis is relatively easier and can be done while going about daily activities.
How often is peritoneal dialysis typically performed?
Peritoneal dialysis needs to be done several times a day.
What is a major advantage of peritoneal dialysis regarding lifestyle?
It can be completed at home or work, offering more flexibility.
What is the ideal treatment for complete kidney failure?
A kidney transplant is the ideal treatment for complete kidney failure.
Why are immunosuppressants necessary after a kidney transplant?
Immunosuppressants are needed to prevent the body from rejecting the new kidney, as its antigens are recognized as foreign.
What is the biggest disadvantage of a kidney transplant?
The biggest disadvantage is the risk of rejection by the recipient’s immune system.
What are the benefits of a successful kidney transplant?
A successful kidney transplant can prolong life and eliminate the need for dialysis.
What is ultrafiltration?
Ultrafiltration is a process where fluids and small solutes are forced across a membrane due to pressure, while larger molecules are retained.
What is selective reabsorption?
Selective reabsorption is the process by which specific molecules are transported from the glomerular filtrate back into the blood.