The OnQ pump (select a flow)
This is an elastomeric pump used to deliver a constant infusion of local anesthetic to a desired site, i.e.
a peripheral nerve. The advantages of this pump are simplicity (no mechanical parts) and size. There are
two parts to be aware of. One, ensure that the clamp is off (unless you wish to prevent further infusion). Two,
the dial should be set for the desired infusion. Your anesthesiologist will set it for an appropriate rate (usually
between 5 to 10 mL/hr) before you leave. However, it may be important to verify that it hasn't moved after a period
of time. The dial itself can be removed like a key which would prevent any changes being made. If you feel you
wish to discontinue the infusion, but do not want to remove the catheter, it is only necessary to clamp the tubing with the
provided clamp. The dial does not need to be adjusted. If you feel adjustments need to be made, it is likely better
to contact the on call anesthesiologist; however, turning the infusion rate down, i.e. from 6 mL/hr to 4 mL/hr is safe and
therefore a reasonable thing to do if you feel that you are experiencing too much numbness or weakness. BEWARE:
if you turn down your infusion rate within 24 hrs of leaving he hospital because of perceived weakness/numbness, it will likely
result in too little block as the initial dense block wears off and the pump infusion takes over.