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A potassium test checks how much potassium is in your child's blood or urine. Potassium helps keep the body's water and electrolytes in balance. It is also important in how nerves and muscles work.
Your child’s doctor may ask for a urine or blood sample to test potassium levels. It can be checked in a single urine sample. But it's more often measured in a 24-hour urine sample.
A blood or urine test for potassium may be done to:
A health professional takes a sample of your child's blood.
If your child is old enough, he or she may follow the steps below without your help. If your child is younger, you will need to help.
A blood test or one-time urine collection will probably take a few minutes. Or you may collect your child's urine over a period of 24 hours.
Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if your child is having problems. Ask your doctor when you can expect to have your child's test results.
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Adaptation Date: 5/19/2020
Adapted By: Alberta Health Services
Adaptation Reviewed By: Alberta Health Services
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