When and how to take the paediatric urine test (for hereditarily transmitted diseases).
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The baby urine test is to be taken after 21 days of being at home.
At the paediatric hospital, a blood test was taken from your baby's heel just after birth to screen for certain metabolic diseases.
After 21 days of life, your child can benefit from a second screening for hereditarily transmitted diseases. This test, which is free, consists of a simple urine sample taken at home. Although it is not mandatory, it is recommended. You should use a paediatric urine collection sterile bag (200 ml).
Why take a urine sample at 21 days?
- Analysing the urine of newborns allows early detection and treatment of diseases likely to harm their development (e.g. congenital lactic acidosis).
- When treatment exists, starting it quickly helps prevent the harmful consequences of the metabolic disease detected.
- What is a metabolic disease? Metabolic diseases are caused by the presence of defects in genes. These defects disrupt the way the body makes or destroys certain proteins or enzymes. These diseases usually affect more than one organ of the body (sometimes even all organs). Most of them are the cause of significant malfunctions. They can take different forms depending on the age at which they started, their severity and the mode of transmission.
How to collect urine at home? The urine sample is taken from your baby's nappies. To do this properly, you will need the materials that were given to you when you left the hospital or birth centre, including blotting paper, absorbent pads, a yellow form and a reply envelope.
Steps to follow for collecting baby's urine:
- Take the urine sample in the morning, if possible.
- Before sampling, do not use a commercial wet wipe to wash your baby's bottom and do not apply cream, oil or powder to your baby's bottom.
- It's best to avoid the powder at all times, as it spreads in the air and can damage your baby's lungs if they breathe it.
- Did you forget? It is advisable to take the screening test, even if you are late.
- Place an absorbent pad between the nappies and your baby's bottom. The absorbent part should be placed facing his skin and the plastic part facing the nappies. Wait until the absorbent pad is completely soaked with urine.
- If the tampon becomes contaminated with stool, it will be unusable. In this case, try again with the excess buffer put back into the hardware.
- If you no longer have an absorbent pad, you can use two sheets of regular-sized paper towels folded in quarters instead.
- Remove the urine-soaked pad from the diaper and press the blotting paper (numbered filter paper) onto the pad until the blotting paper is completely wet on both sides.
- Let the blotting paper dry completely on a clean, dry surface. Return the completely dry blotting paper and the completed yellow form to the return envelope. Stick a stamp on the envelope and mail it.
- Do not hesitate to call back the National Health Service (NHS) a GP surgery or a United Kingdom hospital if you have any question or need help.
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