Estimating Insertion Length of Umbilical Catheters in Newborn Infants

"* The sternal notch to upper border of umbilicus length measurement in centimetres.~* The length of the umbilical stump in centimetres.~* The length of the UVC and/or UAC inserted in centimetres which will be identified using the printed markers on the catheter. The marker which is closest to the end of the umbilical stump will be the recorded value.~* The length of the UVC and/or UAC in centimetres when the umbilical stump length is subtracted."