Potassium (urine)
Potassium is excreted by the kidney into the urine under the control of aldosterone. Urine potassium is measured as part of the urine U&Es panel. Clinical indications for requesting this test include the investigation of hypokalaemia, hyperkalaemia, states of hypoaldosteronism or hyperaldosteronism, and type 4 renal tubular acidosis. A measurement of urine potassium concentration is required to calculate the trans-tubular potassium gradient (TTKG).
| Tube | 08 (UR) - Urine |
|---|---|
| ID | Tests&Tubes0096 |
| Turn Around | A&E: N/A Day Case: N/A In-Patient: 6 Hours Out-Patient: 24 Hours GP: N/A |
| Send to | Blood Sciences Cross Site |
| Contact | For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net. |
| Collection Con | Minimum volume: 500µl urine Instructions for Lab Staff: Standard lab processing- No special requirements. |
| Sample REQ | Urine |
| Ref. Range Notes | Blood Sciences reference ranges are available through the useful information and links page: https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/ |
| Units | mmol/L |
| Telepath | UEU1L |
| ICE Codes | LUEU |
