Kidney retention parameters

Kidney retention parameters are measured values ​​determined by laboratory medicine, which are used in medicine, especially in renal medicine , to assess the performance of the kidneys . An increase indicates impaired kidney function , as the substances whose serum levels are measured are retained in the body ( retention ). The indication for the use of kidney replacement methods such as dialysis or hemofiltration is also based on these values.

The parameters quantified in blood serum include:

• the creatinine , a harnpflichtiges , formed in the muscle metabolite,
• of urea , also a harnpflichtige substance in the urea cycle is obtained,
• the abbreviated BUN blood urea nitrogen and the
• Uric acid , the end product of purine metabolism .

The body's own protein cystatin C is also measured in the serum and used to determine the glomerular filtration rate.

An increased serum potassium level can also indicate decreased kidney function, but also have other causes.

literature

• Walter G. Guder: Das Laborbuch für Klinik und Praxis, p. 119 ff. Elsevier, Urban & Fischer Verlag, Munich 2005, ISBN 978-3-437-23340-1 . Online: limited preview in Google Book search