A urine protein test measures the total amount of protein in the urine. Once a
urine sample is collected, the lab determines the amount of protein in the urine sample.
This test is often done as part of a routine urinalysis in which several chemicals
in the urine are measured.
Why It's Done
In most healthy people, the
kidneys prevent significant amounts of protein from entering the urine (pee),
so the urine protein test is most commonly used to screen for kidney disease. It's
also used to monitor kidney function in kids already diagnosed with kidney
disease or who are taking medicines that can affect the kidneys.
Abnormal results also may point to diseases affecting other parts of the body.
Other tests may be needed before a definite diagnosis can be made.
Before the test, your child might need to temporarily stop taking specific drugs
that could interfere with results. Be sure to discuss this with your doctor.
Collecting the specimen should only take a few minutes. Your child will be asked
to pee into a clean sample cup in the doctor's office. If your child isn't potty trained
and can't pee into a cup, a small catheter may need to be inserted into the bladder
to get the urine specimen.
Alternatively, a urine collection bag with adhesive tape on one end might be used
to collect a sample from an infant. You'll clean your baby's genital area and then
arrange the bag around the urinary opening. Once the bag is in place, you'll secure
it with the attached tape. You can then put a diaper on your baby. Remove the collection
bag once your baby has peed into it, usually within an hour. Bring this specimen to
Sometimes it's better to collect a sample first thing in the morning after your
child wakes up. If this is the case, you may be asked to help your child with the
test at home. Follow any storage and transportation instructions the lab gives you.
What to Expect
Because the test involves normal urination, there shouldn't be any discomfort as
long as your child can provide a urine sample.
Getting the Results
The results of the urine protein test should be available within a day. Your doctor
will go over the results with you and explain what they mean. If the results are abnormal,
more tests may be ordered.
No risks are involved when taking a urine protein test. The adhesive tape on the
collection bag may occasionally irritate an infant’s skin. If a catheter is
used to obtain the urine, it may cause temporary discomfort. If you have any questions
or concerns about this procedure, talk to your doctor.
Helping Your Child
The urine protein test is painless. Explaining how the test will be conducted and
why it's being done can help ease any fear. Make sure your child understands that
there should be no other objects, such as toilet paper or hair, in the sample.
If You Have Questions
If you have questions about the urine protein test, speak with your doctor.