Paediatrics: Suprapubic aspiration of urine
2021-04-15 01:33 PM
The optimal method for obtaining urine for bacteriology in a child <2yr old.
Suprapubic aspiration of urine
Optimal method for obtaining urine for bacteriology in a child <2yr old.
- 21–23G needle.
- 2–5mL syringe.
- An alcohol impregnated swab.
- Sterile urine sample container.
- Cotton wool or gauze swab and adhesive plaster.
- Wait at least 30min from last urination.
- If in doubt as to whether the bladder contains adequate urine, perform bladder US to confirm.
- Place child supine (with an assistant holding hips abducted) and then identify site—midline anterior lower abdominal wall 1cm above the pubic bone.
- Clean site with an alcohol impregnated swab.
- Insert needle connected to the syringe at 90° to the skin, aspirating continuously until urine is obtained.
- Insert to almost the depth of the needle. If no urine is obtained, partially withdraw it before inserting again at different angle.
- Once required urine is aspirated, remove the needle, press on puncture site with cotton wool or gauze swab, and then apply an adhesive plaster.
- Place urine in sterile container.
- If unsuccessful, repeat the procedure 30–60min later.