Urinary obligation
There is a urinary obligation for metabolic products that must be excreted with the urine ("urinary substances" or "urinary substances"). Above all, urea (through the protein metabolism ), uric acid (through the purine metabolism ) and creatinine (through the metabolism in the muscles ) are produced. Is a reduction in kidney function (for example, acute renal failure , renal failure or shock kidney ) before, the excretion of these substances may be insufficient and the content in the body increase, which can lead to appropriate health impairments (uremia - see also uremia ).
Via the kidneys (renal) are completely or at least mainly excreted:
| substance | renal share of total excretion |
|---|---|
| Hydrogen ions | 100% |
| Ammonium ions | 100% |
| Creatinine | 95% |
| Sodium ions | 95% |
| Chloride ions | 95% |
| urea | 80% |
| uric acid | 65% |
| water | 60% |
Individual evidence
- ↑ Georg A. Narciß: Knaur's dictionary of medicine , Dromer Knaur Verlag, Munich 1988, ISBN 3-426-26361-0 , p. 84.
- ↑ Sieglinde bow mountains: Hexal Taschenlexikon medicine . 3. Edition. Urban & Fischer, Jena 2004, ISBN 3-437-15011-1 ( online here ).
- ^ Axel Karenberg: Specialized language medicine in a crash course . 2nd Edition. Schattauer Verlag, Stuttgart 2006, ISBN 3-7945-2553-1 ( online here ).
- ^ Willibald Pschyrembel : Clinical Dictionary , de Gruyter , 266th edition, Berlin and Boston 2014, ISBN 978-3-11-033997-0 , page 2050.