1. Which hormone is produced by the kidney and is often used as performance-enhancing drug in sports?

Serotonin

Thyroxine

Calcitonin

Erythropoietin

2. How is the capillary tuft called that is surrounded by Bowman's capsule in nephrons?

Tophi

Glomerulus

Cilium

Granulocyte

3. Which vitamin is converted to its active form (Calcitriol) in the kidneys?

Vitamin A

Vitamin D

Vitamin E

Vitamin K

4. Which are the most commonly used indicators of renal function?

Uric acid / Creatine kinase

AST / ALT

Creatinine / Urea

HDL / LDL

5. How can the reduction of potassium in food be achieved, which is necessary under hemodialysis?

Cooking

Freezing

Drying

Watering

6. Chronic kidney disease (CKD) patients often have to limit the intake of which nutrient?

Protein

Fat

Carbohydrate

Alcohol