Procedure 29 — Treatment: Digital Block

For a hand digital block, at what landmark is the injection given?

The intersection of the digit long axis and the distal phalanx crease.

What concentration and volume of Lidocaine are used for a digital block?

2 mL of Lidocaine 1%, or 1 mL of Lidocaine 2%.

Why is the needle pulled back about 2mm after injection during a digital block?

To clear the needle bevel off the flexor tendon.

How soon should a digital block become evident?

Within 2-3 minutes.

How long does a digital block typically last?

30-60 minutes.

At what angle is the needle inserted for a hand digital block, per the diagram?

45 degrees.

For a foot digital block, at what landmark is the injection given?

The intersection of the digit long axis and 3 cm posteriorly from the web space (marked "a").

In the foot digital block diagram, how many injection points are marked per web space?

Two, labeled A and B.

What provider levels can perform a digital block?

EMT-A (with training) and EMT-P.