How is intrathecal (spinal) medication delivered in a combined spinal/epidural technique?

How is intrathecal (spinal) medication delivered in a combined spinal/epidural technique?

• A. A spinal needle is placed through the epidural needle to inject into the intrathecal space
• B. Directly into the epidural space only
• C. Via intramuscular injection
• D. Via subcutaneous injection

Answer: (A)

In a combined spinal/epidural technique, the spinal medication is delivered by threading a spinal needle through the already placed epidural needle to puncture the dura and enter the intrathecal (subarachnoid) space. Injecting directly into this space allows the drug to mix with cerebrospinal fluid for a rapid, dense block. After the spinal dose is given, the spinal needle is removed, and an epidural catheter can be left in place for additional analgesia or anesthesia as needed.

In a combined spinal/epidural technique, the spinal medication is delivered by threading a spinal needle through the already placed epidural needle to puncture the dura and enter the intrathecal (subarachnoid) space. Injecting directly into this space allows the drug to mix with cerebrospinal fluid for a rapid, dense block. After the spinal dose is given, the spinal needle is removed, and an epidural catheter can be left in place for additional analgesia or anesthesia as needed.