Ambulatory Nerve Block Infusion (Baby Bottle) Preparation

Disposable elastomeric infusion pumps are used for ambulatory nerve block infusion for prolonged analgesic in selected patients population e.g. ambulatory interscalene block. Our bottles hold 250ml and infuse at a rate of 5ml / hr.

Two commonly used concentrations:

1. 250ml 0.2% Ropivacaine (i.e. 500mg Ropivacaine in 250ml) i.e. draw up 50ml of 1% Ropivacaine and dilute it with 200ml NS

2. 250ml 0.15% Ropivacaine (i.e. 375ml Ropivacaine in 250ml) i.e. draw up 37.5ml of 1% Ropivacaine and dilute it with 212.5ml NS