24 Hrs Urinary Potassium

The 24-Hour Urinary Potassium Test is a laboratory investigation used to measure the total amount of potassium excreted through urine over a 24-hour period.

Potassium is an essential electrolyte that helps regulate muscle contractions, nerve signals, fluid balance and normal heart function. This test helps healthcare professionals evaluate potassium excretion and investigate electrolyte imbalances or possible kidney-related abnormalities.

What Does This Test Check?

• Total potassium excretion over 24 hours

• Abnormally high or low urinary potassium levels

• Potassium and electrolyte balance

• Kidney handling of potassium

• Possible causes of potassium imbalance

Sample Requirements

• Sample Type: 24-Hour Urine

• Collection Period: Complete 24-hour urine collection

• Test Category: Laboratory – Clinical Biochemistry

Patient Preparation

• Follow your doctor's instructions regarding diet and fluid intake.

• Inform your healthcare provider about medications and supplements, especially diuretics and potassium supplements.

• Do not stop prescribed medication without medical advice.

• Use the laboratory-approved urine collection container.

• Follow the laboratory's storage and transportation instructions.

24-Hour Urine Collection Instructions

1. Day 1 – Morning: Empty your bladder into the toilet after waking up. Do not collect this first urine. Record the exact time.

2. During the Next 24 Hours: Collect all urine passed throughout the day and night in the designated container.

3. Day 2 – Morning: Collect your final urine sample at exactly the same time as the previous day's starting time.

4. Storage: Store the sample according to laboratory instructions.

5. Submission: Deliver the complete urine collection to the laboratory as instructed.

Relevant Conditions

• Hypokalemia (Low Potassium)

• Hyperkalemia (High Potassium)

• Electrolyte Imbalance

• Kidney Function Abnormalities

Important Information

Urinary potassium results should be interpreted alongside blood potassium levels, kidney function and the patient's clinical history.

Please confirm test availability and sample collection requirements with the laboratory before booking.