Life Guard indicators can be applied on warm and cold blood bags, as well as in activated and not activated status. In non-activated status Life Guard indicators are yellow.
The individual blood bank or hospital ulitmately decides upon the time and place of application depending on the desired method of processing RBC units.
The blood bag must be clean and free from oil and moisture before applying Life Guard indicators. Peel off the indicator from the sheet and stick it directly onto the blood bag. Avoid contact with adhesive in order to maintain full adhesive strength. If the label of the blood bag has an empty space available, the indicators can also be applied there without influencing colour change. Application is recommended to the lower part of the blood bag, but - in any case - always at a site where the greatest mass of blood components is expected during storage and transport.