Epidural Anesthesia 3.

Epidural Anesthesia 3.
Correct placement of the needle may be tested by placing a drop of anesthetic fluid on the hub of the needle. When placed correctly, the drop will be aspirated. If the drop is not aspirated, the correct placement may be further tested by gauging the ease with which the plunger can be compressed, preferably by using the index finger.

Prado TM (2007)