Potassium, 24-Hour details
What Potassium, 24-Hour shows
This test measures the total amount of potassium passed in your urine over a full 24-hour collection. Potassium is an electrolyte vital for nerve and muscle function, including the heart, and your kidneys keep its blood level steady by adjusting how much they excrete. The test helps work out why blood potassium is high or low. High urine potassium alongside low blood potassium suggests the kidneys are losing it, for example from diuretics or hormone effects, while low urine potassium points to losses elsewhere, such as the gut, or low intake. Diet affects the result, and it is interpreted with blood potassium and urine creatinine.
Tests that include Potassium, 24-Hour
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.
- Creatinine, 24 Hour Measures the total creatinine passed in a 24-hour urine collection, used to check the collection is complete and to calculate kidney function and other urine results.
- Potassium, 24-Hour Measures the total potassium your kidneys excrete in urine over 24 hours, helping explain abnormal blood potassium and assess kidney handling of it.
- Potassium/Creatinine Ratio A ratio calculated from urine potassium and urine creatinine, used to judge potassium excretion while adjusting for how concentrated the urine is.
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