Potassium, 24-Hour Urine Test



Quest Diagnostics Test Code: 11316

Potassium is one of the main electrolytes in the body that is important to maintain healthy cell functions. Potassium helps to transport nutrients into cells and waste products out of cells. It is needed for healthy muscle and nerve communication and function. Potassium, along with the other electrolytes, help to regulate the amount of fluids in the body. A 24-hour urine test for potassium level is a more accurate test to do when the person is suffering from a condition which causes prolonged vomiting or diarrhea where potassium is being lost.

This urine test is performed in following conditions such as:

• Routine medical examination
• Kidney disease
• Muscle weakness
• Irregular heartbeat
• Medications like diuretics or heart medications
• High blood pressure
• Patients receiving dialysis


Customers ordering this test wil be required to go to the lab to obtain a specimen container and instructions. The Potassium, 24-hour Urine test requires people void urine at 8am and discard the specimen. Then collect all urine in 24-hour period, ending with final collection at 8am the next morning.


Specimen Collected
  • Urine
Estimated Time Taken

Turnaround time for the Potassium, 24-hour Urine test is typically 1 business day.