Glossary

Serum creatinine

The level of creatinine in the blood.

Serum phosphorus

The level of phosphate in the blood.

Serum potassium

The level of potassium in the blood. Too high or low a level can cause a disturbance in the rhythm of the heart.

Serum urea

The level of urea waste product from normal metabolic function in the blood.

Sevelamer

The active ingredient of Renvela. A non-calcium, non-metallic phosphate binding drug used to prevent hyperphosphataemia in CKD patients. When taken with meals, sevelamer binds to dietary phosphate and prevents its absorption, thereby maintaining phosphate levels in the body.