Question
Identify the major usage of this method depicted in the picture?
| A. |
Locate dural space
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| B. |
Locate meningeal space
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| C. |
Identify the epidural space
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| D. |
Identify the lumbar space
|
Show Answer
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Correct Answer � C
Explanation
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|
Ans. C. Identify the epidural space.
Methods to identify the epidural space:
- Loss of resistance – This is the most commonly used technique. There is a sudden loss of resistance as soon as the needle enters the epidural space (because it pierces ligament flavum.
- Hanging drop technique (Gutierrez’s sign) – If a drop of saline is placed on the hub of the needle it will be sucked in due to the negative pressure of epidural space.
- Mecintosh extradural space indicator.
- Movement of bubble on Odom’s indicator.
