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Creatinine tests measure the level of the waste product creatinine (say "kree-AT-uh-neen") in your child's blood and urine. These tests show how well your child's kidneys are working.
A blood creatinine level or a creatinine clearance test is done to:
Your child may be asked to:
If you are asked to collect urine, your doctor will give you a large container that holds about 4 L (1 gal). You will use the container to collect your child's urine for 24 hours.
Tell your doctor ALL the medicines and natural health products your child takes. Some may affect the results of the test. Your doctor will tell you if your child should stop taking any of them before the test and how soon to do it.
For the urine tests
Your child's urine is collected for a period of time, such as over 4 or 24 hours. Your doctor will give you a large container that holds about 4 L (1 gal). You will use the container to collect your child's urine.
But don't save this urine. Write down the time your child urinated.
Each time your child urinates during this time period, collect the urine in a small, clean container. Then pour the urine into the large container. Don't touch the inside of either container with your fingers.
Add this urine to the large container. Then write down the time.
For the blood test A health professional takes a sample of your child's blood.
The urine test will take 24 hours. The blood test will take a few minutes.
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 advice line (811 in most provinces and territories) 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: 2/28/2022
Adapted By: Alberta Health Services
Adaptation Reviewed By: Alberta Health Services
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