Compare this test’s laboratory options
Potassium, 24-Hour Urine with Creatinine
Quest Diagnostics1 test optionFrom $18.73
Potassium, 24-Hour Urine with Creatinine
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
DetailsPotassium, 24-Hour Urine with Creatinine – This test is crucial for evaluating hydration status and the overall balance of electrolytes in the body. It involves analyzing a 24-hour collection of urine to measure potassium levels, which play a key role in nerve function, muscle control, and heart health.
What patients is this test right for?This test may be recommended for individuals experiencing symptoms related to electrolyte imbalance or those with conditions affecting kidney function.
Symptoms of Electrolyte Imbalance:• Irregular heartbeat
• Weakness or tiredness
• Nausea
• Excessive thirst or urination
• Confusion or changes in mental status
What type of sample is required for this test?10 mL urine aliquot from a 24-hour collection – no preservative is needed. It's important to collect all urine produced in a 24-hour period for accurate results.
Test ResourcesFor more information on how to properly collect a 24-hour urine sample and prepare for this test, please consult healthcare provider guidelines or visit relevant medical resource websites.
Additional test information
This test is crucial for evaluating hydration status and the overall balance of electrolytes in the body. It involves analyzing a 24-hour collection of urine to measure potassium levels, which play a key role in nerve function, muscle control, and heart health.
Collection and processing
- Sample type: Urine
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Urine. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
DetailsPotassium, 24-Hour Urine with Creatinine - This test is crucial for evaluating hydration status and the overall balance of electrolytes in the body. It involves analyzing a 24-hour collection of urine to measure potassium levels, which play a key role in nerve function, muscle control, and heart health.
What patients is this test right for?This test may be recommended for individuals experiencing symptoms related to electrolyte imbalance or those with conditions affecting kidney function.
Symptoms of Electrolyte Imbalance:• Irregular heartbeat
• Weakness or tiredness
• Nausea
• Excessive thirst or urination
• Confusion or changes in mental status
What type of sample is required for this test?10 mL urine aliquot from a 24-hour collection - no preservative is needed. It's important to collect all urine produced in a 24-hour period for accurate results.
Test ResourcesFor more information on how to properly collect a 24-hour urine sample and prepare for this test, please consult healthcare provider guidelines or visit relevant medical resource websites.
Additional details
This test is crucial for evaluating hydration status and the overall balance of electrolytes in the body. It involves analyzing a 24-hour collection of urine to measure potassium levels, which play a key role in nerve function, muscle control, and heart health.
Highlighted health areas
- Cardiovascular
- Kidney
- Electrolytes
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Creatinine, 24-Hour Urine
- Potassium, 24-Hour Urine
- Potassium/Creatinine Ratio