Value Stream — Hospital Blood Transfusion
Sample-to-transfusion pathway for a 96-unit-a-day hospital blood bank, computing a 10.6-hour lead time against 69 minutes of laboratory and bedside work with the reception backlog worth 6.5 hours at takt.
Make it your own.
title "Blood transfusion — sample to transfusion, haematology"
supplier "Ward phlebotomy rounds"
customer "Transfused inpatients" demand: 96/day
available 24h/day # the blood bank never closes
control "Laboratory information management system"
process "Sample collection + positive ID" { ct: 7m; uptime: 97%; operators: 4; shifts: 3; fpy: 88% }
wait 42m # porter round to the lab
process "Specimen reception" { ct: 4m; uptime: 95%; operators: 2; shifts: 3; fpy: 92% }
inventory 26 samples
process "Group and antibody screen" { ct: 22m; uptime: 90%; operators: 3; shifts: 3; fpy: 96% }
wait 35m # analyser batch waiting to be authorised
process "Electronic crossmatch" { ct: 9m; uptime: 94%; operators: 2; shifts: 3; fpy: 98% }
wait 1h15m # waiting for a porter to collect the unit
process "Unit issue + collection" { ct: 12m; uptime: 96%; operators: 2; shifts: 3 }
wait 25m
process "Bedside check + transfusion start" { ct: 15m; uptime: 98%; operators: 2; shifts: 3; fpy: 94% }
info "Transfusion request" from supplier to control electronic
info "Crossmatch result" from "Electronic crossmatch" to control electronic
info "Collection slip" from control to "Unit issue + collection" manual